List of state highways in Iowa

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Highway names
InterstatesInterstate nn (I-nn)
US HighwaysU.S. Highway nn (US nn)
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State highways in the U.S. state of Iowa are owned and maintained by the Iowa Department of Transportation.

Number Length (mi)[1][2] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
No. 1 236[3] 380 Missouri state line near Lamoni Minnesota state line near Northwood 01920-01-011920 01926-01-011926 Jefferson Highway through Iowa; replaced by US 65 and US 69
Iowa 1 119.268 191.943 Iowa 2 south of Keosauqua US 151 south of Anamosa 01926-01-011926 current
Iowa 2 233.80[4] 376.26 US 6 near Lewis IL 2 at Muscatine 01920-01-011920 01939-01-011939 Renumbered Iowa 92 (renumbering approved 1938)
Iowa 2 251.376 404.550 N-2 at Nebraska City, Neb. US 61 at Fort Madison 01941-01-011941 current Formerly Iowa 3
Iowa 3 267.07[4] 429.81 N-2 at Nebraska City, Neb. IL 9 at Fort Madison 01920-01-011920 01941-01-011941 Renumbered Iowa 2
Iowa 3 323.102 519.982 SD 50 near Westfield Northwest Arterial at Dubuque 01945-01-011945 current Replaced part of Iowa 5, all of Iowa 221, and part of Iowa 10
Iowa 4 29.70[5] 47.80 US 59 / Iowa 141 at Denison Iowa 175 at Odebolt 01920-01-011920 01968-12-311968 Renumbered Iowa 39
Iowa 4 146.343 235.516 Iowa 44 in Panora MN 4 near Estherville 01969-01-011969 current Formerly Iowa 17
Iowa 5 77.64[5] 124.95 Iowa 3 near Aurelia US 169 at Fort Dodge 01920-01-011920 01968-12-311968 Renumbered Iowa 7
Iowa 5 103.540 166.631 Route 5 south of Cincinnati I-35 near West Des Moines 01969-01-011969 current Formerly portion of Iowa 60
No. 6 369[3] 594 Nebraska state line at Council Bluffs Illinois state line at Clinton 01920-01-011920 01926-01-011926 Lincoln Highway through Iowa; replaced by US 30
Iowa 6 104 167 Route 5 near Cincinnati US 32 in Des Moines 01926-01-011926 01931-01-011931 Formerly No. 17 and No. 59; became part of Iowa 60 when US 6 extended into Iowa
Iowa 7 140.69[4] 226.42 US 6 at Council Bluffs City US 6 in Des Moines 01920-01-011920 01939-01-011939 Replaced by an extended Iowa 64
Iowa 7 0.47[6] 0.76 Iowa 99 in Oakville Oakville 01955-01-011955 01957-01-011957 Renumbered Iowa 407; spur route
Iowa 7 24.18[5] 38.91 I-29 / US 77 in Sioux City Iowa 3 near Brunsville 01957-01-011957 01968-12-311968 Formerly Iowa 29; portion became Iowa 985
Iowa 7 73.661 118.546 Iowa 3 near Aurelia US 169 at Fort Dodge 01969-01-011969 current Formerly Iowa 5
No. 8 283[3] 455 No. 6 in Council Bluffs Illinois state line at Burlington 01920-01-011920 01926-01-011926 Replaced by US 34
Iowa 8 13.961 22.468 US 63 in Traer US 218 near Garrison 01926-01-011926 current
Iowa 9 295.088 474.898 SD 42 near Larchwood WIS 82 at Lansing 01920-01-011920 current
Iowa 10 104.512 168.196 SD 46 near Hawarden Iowa 4 at Havelock 01920-01-011920 current
Iowa 11 96.60[4] 155.46 US 151 / Iowa 64 in Cedar Rapids US 52 / Iowa 24 in Calmar 01920-01-011920 01941-01-011941 Replaced by Iowa 150, which was proposed to become part of US 150
Iowa 12 46.274 74.471 US 20 / US 75 at Sioux City Iowa 10 in Hawarden 01920-01-011920 current Signed as US 20 Bus through Sioux City
Iowa 13 85.235 137.172 US 30 / US 151 near Bertram US 52 near Froelich 01920-01-011920 current
Iowa 14 187.838 302.296 Iowa 2 at Corydon US 18 / US 218 Bus in Charles City 01920-01-011920 current
Iowa 15 111 179 US 30 in Ames Minnesota state line near Lake Mills 01920-01-011920 01935-01-011935 Replaced by US 69
Iowa 15 14.92[5] 24.01 Iowa 137 at Eddyville US 63 in Ottumwa 01937-01-011937 01968-12-311968 Renumbered Iowa 23
Iowa 15 4.655 7.491 Route 15 south of Milton Iowa 2 at Milton 01969-01-011969 02003-01-012003 Formerly Iowa 23
Iowa 15 63.578 102.319 Iowa 3 near Pocahontas MN 15 near Armstrong 01969-01-011969 current Formerly Iowa 44
Iowa 16 239 385 Missouri state line near Redding Minnesota state line near Ledyard 01920-01-011920 01930-01-011930 Replaced by US 169
Iowa 16 65.488 105.393 US 34 near Agency US 61 at Wever 01930-01-011930 current
Iowa 17 147.48[5] 237.35 Iowa 64 in Panora MN 4 near Estherville 01920-01-011920 01968-12-311968 Renumbered Iowa 4
Iowa 17 102.789 165.423 Iowa 141 at Granger US 18 near Wesley 01969-01-011969 current Formerly portion of Iowa 60
No. 18 148 238 Missouri state line at Braddyville No. 23 at Sac City 01920-01-011920 01926-01-011926 Replaced by US 71
No. 19 302 486 South Dakota state line near Inwood Wisconsin state line at Lansing 01920-01-011920 01926-01-011926 East end truncated to US 75 for a month in 1926; replaced by US 18
Iowa 19 2.44[6] 3.93 Backbone State Park Iowa 3 / Iowa 13 near Strawberry Point 01927-01-011927 01957-01-011957 Renumbered Iowa 410
No. 20 324[3] 521 Illinois state line at Keokuk Minnesota state line near Burr Oak 01920-01-011920 01926-01-011926 Replaced by US 61 and US 55
Iowa 21 115 185 Minnesota state line near Allendorf Iowa 141 near Denison 01920-01-011920 01934-01-011934 Replaced by Iowa 73 (proposed US 73)
Iowa 21 97.152 156.351 Iowa 149 near Hedrick US 20 / Iowa 27 at Waterloo 01934-01-011934 current Formerly ended at Iowa 92; extended south in 1980
No. 22 34[3] 55 No. 5 at Le Mars Minnesota state line north of Rock Rapids 01920-01-011920 01926-01-011926 Replaced by US 75
Iowa 22 97.905 157.563 Iowa 21 near Thornburg US 61 at Davenport 01926-01-011926 current
No. 23 130[3] 210 South Dakota state line at Sioux City No. 16 at Fort Dodge 01920-01-011920 01926-01-011926 Replaced by US 20
Iowa 23 4.78[5] 7.69 Route 15 south of Milton Iowa 2 at Milton 01926-01-011926 01968-12-311968 Formerly part of No. 11; renumbered Iowa 15
Iowa 23 14.316 23.039 US 63 in Ottumwa Iowa 137 at Eddyville 01969-01-011969 01997-01-011997 Formerly Iowa 15; partially replaced by US 63
Iowa 23 16.022 25.785 Iowa 92 at Oskaloosa Iowa 149 near Fremont 01997-01-011997 current Formerly US 63
Iowa 24 127 204 US 71 near Lyman US 63 in Oskaloosa 01920-01-011920 01927-01-011927 Replaced by an extended Iowa 2
Iowa 24 27.546 44.331 US 18 / US 63 in New Hampton US 52 / Iowa 150 in Calmar 01928-01-011928 current
No. 25 20 32 No. 15 / No. 24 at Winterset No. 2 / No. 17 at Adel 01920-01-011920 01926-01-011926 Replaced by relocated Iowa 16
Iowa 25 103.419 166.437 Iowa 2 near Benton US 30 near Scranton 01926-01-011926 current Continued south to the Missouri state line until 1978, and to Blockton until 1980
Iowa 26 10 16 US 18 near Rock Valley US 18 near Rock Valley 01920-01-011920 01930-01-011930 Replaced by relocated US 18 (portions were cancelled in exchange for relocated US 18)
Iowa 26 9.52[5] 15.32 US 18 in Inwood Iowa 9 near Larchwood 01930-01-011930 01968-12-311968 Renumbered Iowa 182
Iowa 26 11.370 18.298 Iowa 9 in Lansing MN 26 at New Albin 01969-01-011969 current Formerly Iowa 182
Iowa 27 21.2 34.1 Iowa 12 in Akron US 75 in Le Mars 01920-01-011920 01929-01-011929 Replaced by an extended Iowa 5
Iowa 27 11 18 Nebraska border US 30 / US 75 in Missouri Valley 01929-01-011929 01930-01-011930 Renumbered Iowa 130
Iowa 27 6.86[7] 11.04 Alvord US 75 near Rock Rapids 01930-01-011930 01980-01-011980 Spur route; originally from US 75 to George

Iowa 27 		281.689 453.335 Route 27 near Wayland, Mo. I-35 at the Minnesota state line 02001-01-012001 current Avenue of the Saints
No. 28 72[3] 116 No. 6 / No. 11 in Cedar Rapids No. 5 / No. 20 in Dubuque 01920-01-011920 01926-01-011926 Replaced by US 161
Iowa 28 21.613 34.783 Iowa 92 at Martensdale I-35 / I-80 at Johnston 01926-01-011926 current Previously ended at Iowa 5; extended to US 6 in 1980, and to I-80 in 1991
Iowa 29 22.06[6] 35.50 I-29 / US 77 in Sioux City Iowa 3 near Brunsville 01920-01-011920 01957-01-011957 Renumbered Iowa 7 when I-29 was designated
No. 30 25 40 No. 23 at Moville No. 5 at Remsen 01920-01-011920 01926-01-011926 Renumbered Iowa 140
Iowa 31 38.504 61.966 US 59 near Quimby Iowa 141 near Smithland 01920-01-011920 current
No. 32 5 8.0 No. 5 near Cleghorn Cleghorn 01920-01-011920 01926-01-011926 Renumbered Iowa 145
Iowa 32 7.68 12.36 Iowa 9 near Spirit Lake US 71 near Milford 01934-01-011934 01981-01-011981 extended and renumbered Iowa 86 to match Minnesota
Iowa 32 5.101[7] 8.209 US 20 at Dubuque US 52 / Iowa 3 at Sageville 01995-01-011995 02020-01-012020
Iowa 33 3.4 5.5 Meriden Iowa 5 01920-01-011920 01930-01-011930
Iowa 33 55.95[5] 90.04 US 75 at Le Mars MN 60 at Bigelow, Minn. 01930-01-011930 01968-12-311968 Renumbered Iowa 60
No. 34 68 109 No. 4 at Denison No. 12 at Sioux City 01920-01-011920 01926-01-011926 Renumbered Iowa 141
Iowa 35 49.00[8] 78.86 Iowa 37 near Turin US 71 near Odebolt 01920-01-011920 01948-01-011948 Replaced by an extended Iowa 175
Iowa 35 0.23[6] 0.37 US 18 near Garner Garner 01954-01-011954 01957-01-011957 Spur route; renumbered Iowa 409 when I-35 was designated
Iowa 36 2.983 4.801 Wall Lake US 71 near Wall Lake 01920-01-011920 02003-01-012003 Spur route
Iowa 37 40.321 64.890 Iowa 175 near Turin US 59 near Earling 01920-01-011920 current Continued east to Irwin until 1982
Iowa 38 98.941 159.230 US 61 Bus / Iowa 92 in Muscatine Iowa 3 near Edgewood 01920-01-011920 current
Iowa 39 11.68[5] 18.80 US 30 near Logan Iowa 64 / Iowa 191 at Portsmouth 01920-01-011920 01968-12-311968 Renumbered Iowa 44
Iowa 39 24.321 39.141 US 59 at Denison Iowa 175 at Odebolt 01969-01-011969 current Formerly Iowa 4
No. 40 262[3] 422 No. 20 in Keokuk Minnesota state line near Mona 01920-01-011920 01926-01-011926 Replaced by US 161, US 30, and US 218
Iowa 40 3.524 5.671 Allerton Iowa 2 near Corydon 01926-01-011926 02003-01-012003 Spur route
Iowa 41 1.827 2.940 Malvern US 34 near Malvern 01920-01-011920 02003-01-012003 Spur route
Iowa 42 4.18 6.73 US 275 / Iowa 2 near Riverton Riverton 01920-01-011920 01980-12-011980 Spur route
Iowa 43 1.75 2.82 Ringsted Iowa 15 near Ringsted 01920-01-011920 01980-01-011980 Spur route
Iowa 44 63.95[5] 102.92 Iowa 3 near Pocahontas MN 15 near Armstrong 01920-01-011920 01968-12-311968 Renumbered Iowa 15
Iowa 44 104.524 168.215 US 30 near Logan Iowa 141 at Grimes 01969-01-011969 current Formerly Iowa 39 and Iowa 64
Iowa 45 1.324 2.131 Manilla Iowa 141 near Manilla 01920-01-011920 02003-01-012003 Spur route
Iowa 46 64.84[4] 104.35 US 59 near Denison Iowa 17 (now Iowa 144) in Perry 01920-01-011920 01941-01-011941 Originally a double spur route; replaced by an extended Iowa 141
Iowa 46 4.34 6.98 Iowa 90 in Des Moines Iowa 28 (now Army Post Road) in Des Moines 01942-01-011942 01950-01-011950 Now 9th Street, Mulberry Street, and 7th Street
Iowa 46 6.57[9] 10.57 Iowa 5 near Avon Iowa 163 in Des Moines 01953-01-011953 01998-01-011998
Iowa 47 13 21 Iowa 287 in Farnhamville US 169 near Harcourt 01920-01-011920 01940-01-011940 Spur route; replaced by an extended Iowa 175
Iowa 47 0.82 1.32 Iowa 14 near Allison Allison 01941-01-011941 01980-01-011980 Spur route
Iowa 48 47.919 77.118 US 59 at Shenandoah US 6 near Lewis 01920-01-011920 current
Iowa 49 27.228 43.819 Iowa 2 in Bedford US 34 in Adams County 01920-01-011920 02003-01-012003 Was originally a spur route from US 34 to Lenox
Iowa 50 7.135 11.483 US 169 near Lehigh Lehigh 01920-01-011920 02003-01-012003 Spur route
Iowa 51 11.007 17.714 US 18 / US 52 at Postville Iowa 9 near Waukon 01920-01-011920 current
Iowa 52 7[10] 11 Elma US 63 east of Elma 01920-01-011920 01934-01-011934 Spur route; renumbered Iowa 272 when US 52 extended into Iowa
No. 53 13 21 No. 14 near Rockford No. 19 near Nora Springs 01920-01-011920 01926-01-011926 Renumbered Iowa 147 to avoid conflict with US 53 (which became US 55 in the revised numbering plan; see below)
Iowa 53 3.04[8] 4.89 Iowa 3 near Clarksville Clarksville 01926-01-011926 01949-01-011949 Formerly No. 55; became part of Iowa 188
Iowa 53 1.43[11] 2.30 Gowrie Iowa 175 near Gowrie 01953-01-011953 01969-01-011969 Spur route
Iowa 54 2.99 4.81 Marble Rock Iowa 14 in Floyd County 01920-01-011920 01980-01-011980 Spur route
No. 55 3 4.8 No. 10 near Clarksville Clarksville 01920-01-011920 01926-01-011926 Renumbered Iowa 53 to avoid conflict with US 55
Iowa 55 4.506 7.252 Seymour Iowa 2 near Promise City 01934-01-011934 02003-01-012003 Spur route
Iowa 56 24.432 39.319 Iowa 150 at West Union Iowa 13 at Elkader 01920-01-011920 current
Iowa 57 18.41[12] 29.63 Iowa 14 near Fern Iowa 58 in Cedar Falls 01920-01-011920 01986-01-011986 Section from Iowa 58 to US 20 was deleted in 1980; removed after US 20 freeway was constructed
Iowa 57 43.765 70.433 US 65 near Iowa Falls US 218 / Iowa 27 / Iowa 58 at Cedar Falls 01986-01-011986 current Formerly US 20
Iowa 58 12.030 19.360 US 63 at Hudson US 218 / Iowa 27 / Iowa 57 at Cedar Falls 01920-01-011920 current
Iowa 59 197[10] 317 Minnesota state line Iowa 5 at Albia 01920-01-011920 01934-01-011934 Replaced by US 63 and Iowa 137
Iowa 60 233.24[5] 375.36 Route 5 south of Cincinnati US 18 near Wesley 01920-01-011920 01968-12-311968 Renumbered Iowa 5 and Iowa 17
Iowa 60 58.771 94.583 US 75 at Le Mars MN 60 at Bigelow, Minn. 01969-01-011969 current Formerly Iowa 33
No. 61 73 117 No. 28 at Anamosa No. 6 in Lyons 01920-01-011920 01926-01-011926 Renumbered Iowa 117 and Iowa 136
Iowa 62 19.633 31.596 Iowa 64 at Maquoketa US 52 in Bellevue 01920-01-011920 current
No. 63 24 39 No. 59 in New Sharon No. 7 in Grinnell 01920-01-011920 01926-01-011926 Renumbered Iowa 146
Iowa 64 32 51 Iowa 163 at Prairie City US 30 in Colo 01920-01-011920 01936-01-011936 Renumbered Iowa 117
Iowa 64 64.355 103.569 US 151 at Anamosa US 52 / IL 64 at Savanna, Ill. 01939-06-201939 current Formerly Iowa 117
No. 65 21 34 No. 8 at Lucas No. 1 south of Indianola 01920-01-011920 01926-01-011926 Renumbered Iowa 137
Iowa 66 7 11 Humeston Iowa 3 near Humeston 01920-01-011920 01930-01-011930 Spur route; replaced by an extended Iowa 137
Iowa 66 7.011 11.283 Iowa 2 near Diagonal Diagonal 01930-01-011930 02003-01-012003 Spur route
Iowa 67 6[10] 9.7 Seymour Iowa 3 near Promise City 01920-01-011920 01934-01-011934 Spur route; renumbered Iowa 55 when US 67 extended into Iowa
Iowa 68 1.933 3.111 Melrose US 34 near Melrose 01920-01-011920 02003-01-012003 Spur route
No. 69 3 4.8 No. 3 near Mystic Mystic 01920-01-011920 01926-01-011926 Renumbered Iowa 138
Iowa 70 8.20[5] 13.20 Macksburg US 169 near Macksburg 01920-01-011920 01966-01-011966 Spur route
Iowa 70 23.954 38.550 Iowa 92 at Columbus Junction US 6 in West Liberty 01969-01-011969 current Formerly Iowa 76
No. 71 3 4.8 Moulton No. 3 near Moulton 01920-01-011920 01926-01-011926 Renumbered Iowa 142
Iowa 72 10.89[12] 17.53 US 69 west of Dows I-35 east of Dows 01920-01-011920 01986-01-011986 Originally a spur route; extended east from Dows to I-35 in 1980
Iowa 73 35.9 57.8 Iowa 8 in Dysart US 6 in Marengo 01920-01-011920 01934-01-011934 Renumbered Iowa 212 to avoid conflict with new Iowa 73, which was proposed to become part of US 73
Iowa 73 225 362 Missouri state line south of Shenandoah Minnesota state line near Allendorf 01934-01-011934 01935-01-011935 Was proposed to become part of US 73; replaced by US 59
Iowa 73 14.97[13] 24.09 Iowa 141 in Coon Rapids Iowa 44 01936-01-011936 01972-01-011972
Iowa 74 38.27[4] 61.59 Iowa 38 in Tipton US 61 in Davenport 01920-01-011920 01941-01-011941 Replaced by Iowa 150, which was proposed to become part of US 150
Iowa 74 11.168 17.973 US 151 in Cedar Rapids Palo 01943-01-011943 01966-01-011966 Spur route; renumbred Iowa 94 when I-74 was designated
No. 75 2 3.2 No. 5 near Marcus Marcus 01920-01-011920 01926-01-011926 Renumbered Iowa 143
Iowa 76 25.98[5] 41.81 Columbus City US 6 in West Liberty 01920-01-011920 01968-12-311968 Renumbered Iowa 70
Iowa 76 48.911 78.715 US 18 near McGregor MN 76 near Eitzen, Minn. 01969-01-011969 current Formerly portion of Iowa 13
Iowa 77 2.685 4.321 Iowa 92 near Keota Keota 01920-01-011920 02003-01-012003 Spur route; continued south to Iowa 78 until 1980
Iowa 78 58.429 94.032 Iowa 149 near Martinsburg US 61 near Morning Sun 01920-01-011920 current
Iowa 79 1.84 2.96 Iowa 2 near Bonaparte Bonaparte 01920-01-011920 01980-01-011980 Spur route
Iowa 79 5.637 9.072 Geode State Park US 34 in Middletown 01980-01-011980 02003-01-012003 Park access road
Iowa 80 4.00[6] 6.44 US 34 near West Burlington US 61 in Burlington 01920-01-011920 01957-01-011957 Spur route; renumbered Iowa 406 when I-80 was designated
Iowa 81 9.20[5] 14.81 Iowa 92 near West Chester Iowa 22 at Wellman 01920-01-011920 01968-12-311968 Renumbered Iowa 114
Iowa 81 2.215 3.565 Route 81 near Farmington Iowa 2 near Farmington 01969-01-011969 current Formerly Iowa 114
Iowa 82 3.773 6.072 Blairstown US 30 near Blairstown 01920-01-011920 02003-01-012003 Spur route
Iowa 83 34.191 55.025 US 59 in Avoca Iowa 148 in Anita 01920-01-011920 current Continued west to Neola until 2003
Iowa 84 6.09[8] 9.80 College Springs US 71 near Shambaugh 01920-01-011920 01943-01-011943 Spur route; replaced by an extended Iowa 333
Iowa 84 2.13 3.43 The Eastern Iowa Airport I-380 near Cedar Rapids 01943-01-011943 01980-01-011980 Airport access road
Iowa 85 8.408 13.531 Montezuma city limits Iowa 21 near Deep River 01920-01-011920 current
Iowa 86 4 6.4 US 34 in Council Bluffs Lake Manawa 01920-01-011920 01928-01-011928 Spur route; restored in 1931 as Iowa 241, later Iowa 192
Iowa 86 3.7 6.0 US 61 (now Sunnyside Avenue) in Burlington US 61 (now Summer Street) in Burlington 01929-01-011929 01945-01-011945 Now Roosevelt Avenue and West Avenue
Iowa 86 0.47 0.76 Fertile Iowa 9 at Fertile 01945-01-011945 01980-01-011980 Spur route
Iowa 86 12.519 20.147 US 71 near Milford MN 86 near Spirit Lake 01980-01-011980 current
Iowa 87 4.06[14] 6.53 US 69 west of Elkhart Elkhart 01920-01-011920 01983-01-011983 Spur route
Iowa 88 37.65[4] 60.59 US 6 in Altoona US 30 near Marshalltown 01920-01-011920 01939-01-011939 Originally a spur route; replaced by an extended Iowa 64
Iowa 88 8.01 12.89 US 61 / Iowa 2 in Fort Madison Iowa 16 in Denmark 01940-01-011940 01980-01-011980 Originally a spur route
Iowa 89 25.87[4] 41.63 US 169 near Bouton Iowa 64 in Johnston 01920-01-011920 01941-01-011941 Originally a spur route; replaced by an extended Iowa 141
Iowa 89 7.69 12.38 Iowa 141 near Woodward Iowa 17 in Madrid 01946-01-011946 01980-11-011980 Replaced by an extended Iowa 210
No. 90 40 64 No. 17 near Bouton No. 16 at Harcourt 01920-01-011920 01926-01-011926 Replaced by relocated Iowa 16
Iowa 90 16 26 Iowa 14 at Grundy Center Iowa 59 near Voorhies 01926-01-011926 01932-01-011932 Formerly No. 58; became part of Iowa 58 again
Iowa 90 16.32[15] 26.26 I-80 in Dallas County I-35 in Des Moines 01932-01-011932 01981-01-011981
Iowa 91 2.69[4] 4.33 US 169 near Harcourt Dayton 01920-01-011920 01940-01-011940 Spur route; replaced by an extended Iowa 175
Iowa 91 4.18 6.73 Ledyard US 169 near Ledyard 01940-01-011940 01980-05-011980 Spur route
Iowa 91 4.643 7.472 Iowa 9 in Lyon County MN 91 at the Minnesota state line 01980-01-011980 02003-01-012003
Iowa 92 1.33[4] 2.14 Iowa 101 near Urbana Urbana 01920-01-011920 01939-01-011939 Spur route; became Iowa 363
Iowa 92 274.231 441.332 US 275 / N-92 in Council Bluffs IL 92 at Muscatine 01939-01-011939 current Formerly Iowa 2
Iowa 93 29.534 47.530 US 63 near Tripoli Iowa 150 in Fayette 01920-01-011920 current
Iowa 94 13.12[6] 21.11 US 151 in Marion US 30 in Mount Vernon 01920-01-011920 01958-01-011958 Replaced by relocated Iowa 150
Iowa 94 11.168 17.973 US 151 Business in Cedar Rapids Palo 01966-01-011966 02003-01-012003 Spur route
Iowa 95 6 9.7 US 169 near Bouton Woodward 01920-01-011920 01932-01-011932 Spur route; replaced by an extended Iowa 89
Iowa 95 3.70 5.95 Carbon Iowa 148 north of Corning 01932-01-011932 01983-01-011983 Spur route; section inside Carbon eliminated 1980; rest redesignated Iowa 951
Iowa 96 16.635 26.771 Iowa 14 near Gladbrook US 63 near Gladbrook 01920-01-011920 current
Iowa 97 1.532 2.466 Russell US 34 near Russell 01920-01-011920 02003-01-012003 Spur route
Iowa 98 11.10[8] 17.86 US 34 near Agency Selma 01920-01-011920 01944-01-011944 Spur route; replaced by an extended Iowa 16, and Iowa 98 was reassigned to the old route of Iowa 16
Iowa 98 1.814 2.919 Leando Iowa 16 near Douds 01944-01-011944 02017-01-012017 Spur route
Iowa 99 33 53 US 30 near Camanche US 61 in Davenport 01920-01-011920 01931-01-011931 Replaced by US 55 (later US 67)
Iowa 99 33.232 53.482 US 34 in Burlington US 61 in Wapello 01931-01-011931 02003-01-012003
Iowa 100 44.42[6] 71.49 US 275 / Iowa 375 in Council Bluffs US 71 in Lyman 01920-01-011920 01958-01-011958 Originally a spur route; replaced by relocated Iowa 92
Iowa 100 6.12[16] 9.85 US 6 near Lewis US 71 near Atlantic 01958-01-011958 01958-01-011958 Former section of Iowa 92; renumbered Iowa 414 due to confusion with old Iowa 100
Iowa 100 16.140 25.975 US 30 / US 218 in Cedar Rapids US 151 / Iowa 13 near Marion 01984-01-011984 current
Iowa 101 15.56 25.04 US 218 in Vinton Iowa 150 north of Urbana 01920-01-011920 01984-01-011984 Replaced by a relocated Iowa 150
Iowa 102 1.82 2.93 Hawkeye US 18 near Hawkeye 01920-01-011920 01980-01-011980
Iowa 102 0.501 0.806 New Sharon city limits US 63 / Iowa 146 in New Sharon 01980-01-011980 current Unsigned highway; formerly extended to Pella
Iowa 103 15.649 25.185 US 218 near Donnellson US 61 / Iowa 2 in Fort Madison 01920-01-011920 02003-01-012003
No. 104 20 32 No. 8 near Council Bluffs No. 4 in Macedonia 01920-01-011920 01926-01-011926 First highway to be decommissioned in Iowa
Iowa 104 1.53 2.46 Woodburn US 34 near Woodburn 01927-01-011927 01980-01-011980 Spur route
Iowa 105 34.23[12] 55.09 US 69 in Lake Mills US 218 in St. Ansgar 01920-01-011920 01992-01-011992 Section from US 69 to Winnebago–Worth county line last shows on 1994 map, so was signed until 1994
Iowa 106 8.98 14.45 Iowa 107 in Clear Lake US 65 in Mason City 01920-01-011920 01980-01-011980
Iowa 107 27.579 44.384 Iowa 3 near Alexander CR B35 near Clear Lake 01920-01-011920 02011-01-012011 All but parts in Meservey and Thornton removed in 2003
Iowa 108 1.18 1.90 Delta Iowa 92 near Delta 01923-01-011923 01980-01-011980 Spur route
Iowa 109 1.268 2.041 Oxford US 6 near Oxford 01923-01-011923 02003-01-012003 Spur route
Iowa 110 0.7 1.1 Larrabee Iowa 73 in Larrabee 01923-01-011923 01934-01-011934 Spur route; decommissioned when Iowa 73 (proposed US 73) was relocated to go through Larrabee
Iowa 110 14.789 23.801 US 20 at Schaller Iowa 7 at Storm Lake 01934-01-011934 current
Iowa 111 26.72[17] 43.00 Kanawha Woden 01923-01-011923 01990-01-011990 Double spur route with US 18; originally a spur route
Iowa 112 3 4.8 Iowa 13 Edgewood 01923-01-011923 01930-01-011930 Spur route; replaced by an extended Iowa 10 (this section now Iowa 3)
Iowa 112 5.19 8.35 Volga Iowa 13 near Osborne 01931-01-011931 01980-01-011980 Spur route
Iowa 113 34.09[4] 54.86 Iowa 10 near Edgewood US 151 in Monticello 01924-01-011924 01938-01-011938 Replaced by an extended Iowa 38
Iowa 113 1.187 1.910 Iowa 64 near Spragueville Spragueville 01938-01-011938 02003-01-012003 Spur route
Iowa 114 2.22[5] 3.57 Route 81 near Farmington Iowa 2 near Farmington 01923-01-011923 01968-12-311968 Renumbered Iowa 81
Iowa 114 9.20 14.81 Iowa 92 near West Chester Iowa 22 at Wellman 01969-01-011969 01981-01-011981 Formerly Iowa 81
Iowa 115 1.34[11] 2.16 US 69 Story City 01923-01-011923 01969-01-011969 Spur route
Iowa 115 1.237 1.991 US 34 near Stanton Viking Lake State Park 01980-01-011980 02003-01-012003 Park access road
Iowa 116 1.57[18] 2.53 US 20 near Manchester Manchester Fish Hatchery 01923-01-011923 01976-01-011976 Fish hatchery access road; renumbered Iowa 938 because US 20 was rerouted
Iowa 116 2.776 4.468 Iowa 3 in Waverly US 218 near Waverly 01998-01-011998 current Section of US 218 Business in Waverly
Iowa 117 63 101 US 161 at Anamosa US 52 / IL 64 at Savanna, Ill. 01923-01-011923 01936-01-011936 Renumbered Iowa 64
Iowa 117 18.562 29.873 Iowa 163 at Prairie City US 65 / Iowa 330 near Mingo 01939-06-201939 current Formerly Iowa 64
Iowa 118 4.06[17] 6.53 Steamboat Rock Iowa 175 near Eldora 01923-01-011923 01989-01-011989 Spur route
Iowa 119 1.04 1.67 Dorchester Iowa 76 near Dorchester 01923-01-011923 01980-01-011980 Spur route
Iowa 120 0.80 1.29 Stanton US 34 near Stanton 01924-01-011924 01980-01-011980 Spur route
Iowa 121 0.51[19] 0.82 Dolliver Memorial State Park Iowa 50 near Lehigh 01924-01-011924 01964-01-011964 Park access road
Iowa 122 5.47[16] 8.80 Iowa 150 in Davenport US 61 in Davenport 01924-01-011924 01960-01-011960 Now Pine Street, Cheyenne Avenue, Division Street, Locust Street, and Marquette Street
Iowa 122 3.04 4.89 Iowa 3 near Clarksville Clarksville 01964-01-011964 01965-01-011965 Former section of Iowa 188; became part of Iowa 188 again
Iowa 122 12.264 19.737 I-35 / US 18 at Clear Lake Mason City city limits 01999-01-011999 current
Iowa 123 10.51 16.91 I-35 in Des Moines Iowa 90 in Des Moines 01924-01-011924 01959-01-011959 Partially replaced by Iowa 60; rest now Fleur Drive
Iowa 123 0.45 0.72 US 34 near Rome Rome 01969-01-011969 01980-01-011980 Spur route; inside Rome stayed in the highway system until 1981
Iowa 124 2.567 4.131 Iowa 4 in Calhoun County Twin Lakes State Park 01924-01-011924 02003-01-012003 Park access road
Iowa 125 3.26 5.25 Salem US 218 east of Salem 01924-01-011924 01981-01-011981 Spur route; section inside Salem deleted in 1980
Iowa 126 1.28 2.06 US 6 near Mitchellville Mitchellville 01924-01-011924 01980-01-011980 Spur route
Iowa 127 15.985 25.725 I-29 near Mondamin US 30 in Logan 01924-01-011924 current
Iowa 128 6.982 11.236 Iowa 13 near Elkader US 52 near Garnavillo 01924-01-011924 current
Iowa 129 0.45[11] 0.72 US 34 near Rome Rome 01924-01-011924 01969-01-011969 Spur route; renumbered Iowa 123 when I-129 was designated
Iowa 130 12 19 Iowa 9 near Cresco Minnesota border near Harmony, Minn 01925-01-011925 01930-01-011930 Renumbered Iowa 139 so Iowa 130 could be reused as a spur of US 30
Iowa 130 11 18 Nebraska border US 30 / US 75 in Missouri Valley 01930-01-011930 01931-01-011931 Formerly Iowa 27; replaced by relocated US 30
Iowa 130 6.65[5] 10.70 Maquoketa Caves State Park US 61 near Maquoketa 01931-01-011931 01966-01-011966 Park access road
Iowa 130 32.023 51.536 Iowa 38 in Tipton I-80 / US 61 at Davenport 01969-01-011969 current
Iowa 131 2[10] 3.2 US 20 near Holstein US 59 near Holstein 01925-01-011925 01937-01-011937 Section from US 20 to Holstein replaced by realigned US 59; rest given to county because US 59 was realigned
Iowa 131 4.520 7.274 Iowa 21 in Belle Plaine US 30 near Belle Plaine 01937-01-011937 02003-01-012003 Part of the Lincoln Highway
Iowa 132 5.74[19] 9.24 I-35 / I-80 in Des Moines Iowa 90 (now US 6) in Des Moines 01925-01-011925 01963-01-011963 Now Douglas Avenue
Iowa 133 4.23[16] 6.81 US 34 / US 218 in Mount Pleasant Oakland Mills Park (then a state park) 01925-01-011925 01961-01-011961 Park access road
Iowa 133 0.970 1.561 US 30 in Nevada Nevada 01964-01-011964 02003-01-012003 Spur route
Iowa 134 7 11 US 65 near Hubbard Iowa 58 01925-01-011925 01930-01-011930 Replaced by relocated Iowa 58
Iowa 134 8 13 Nebraska state line US 34 / US 275 in Glenwood 01930-01-011930 01935-01-011935 Replaced by relocated US 34
Iowa 134 4.06 6.53 US 65 near Hampton Geneva 01935-01-011935 01980-01-011980 Spur route
Iowa 134 1.75[20] 2.82 Beed's Lake State Park Iowa 3 near Hampton 01980-01-011980 01987-01-011987 Park access road
Iowa 135 0.75[21] 1.21 US 30 near Le Grand Le Grand 01926-01-011926 01954-01-011954 Spur route; replaced by relocated US 30; Iowa 135 on route shown below
Iowa 135 1.96 3.15 Montour US 30 near Montour 01954-01-011954 01980-01-011980 Spur route
Iowa 136 87.611 140.996 IL 136 at Clinton US 20 / US 52 at Dyersville 01926-01-011926 current
Iowa 137 21 34 US 34 at Lucas US 65 near Indianola 01926-01-011926 01934-01-011934 Formerly No. 65; replaced by realigned US 65
Iowa 137 14.526 23.377 Iowa 5 at Albia US 63 / Iowa 163 at Eddyville 01934-01-011934 current Formerly Iowa 59
Iowa 138 3.16[22] 5.09 Iowa 2 near Mystic Mystic 01926-01-011926 01973-01-011973 Formerly No. 69
Iowa 139 21 34 US 161 in Iowa City Iowa 38 near Rochester 01926-01-011926 01929-01-011929 Formerly No. 74; replaced by an extended Iowa 1
Iowa 139 11.431 18.396 Iowa 9 near Cresco MN 139 near Harmony, Minn 01930-01-011930 current Formerly Iowa 130; continued south to Protivin from 1935 to 1980
Iowa 140 25.309 40.731 US 20 at Moville Iowa 3 at Remsen 01926-01-011926 current Formerly No. 30; continued south to Sloan from 1931 to 1961, and to Hornick from 1961 to 1964; section from Kingsley to Remsen deleted in 1965, but restored in 1980
Iowa 141 155.362 250.031 I-29 near Sloan I-35 / I-80 at Grimes 01926-01-011926 current
Iowa 142 10.50[5] 16.90 Route 202 at Coatsville, Mo Iowa 2 near Moulton 01926-01-011926 01968-12-311968 Renumbered Iowa 202
Iowa 142 20.901 33.637 Iowa 2 in Plano Iowa 5 near Moravia 01980-01-011980 02003-01-012003
Iowa 143 12.049 19.391 Iowa 3 at Marcus Iowa 10 at Granville 01926-01-011926 current
Iowa 144 34.039 54.780 Iowa 141 at Perry Iowa 175 near Harcourt 01926-01-011926 current
Iowa 145 5 8.0 Iowa 5 near Cleghorn Cleghorn 01926-01-011926 01931-01-011931 Formerly No. 32
Iowa 145 7.408 11.922 I-29 near Thurman US 275 near Sidney 01931-01-011931 02003-01-012003 Originally a spur route west to Thurman; extended west in 1980
Iowa 146 42.735 68.775 US 63 / Iowa 102 in New Sharon US 30 in Le Grand 01926-01-011926 current
Iowa 147 6.706 10.792 Rockford Iowa 14 in Floyd County 01926-01-011926 02003-01-012003 Spur route
Iowa 148 66.828 107.549 Route 148 near Bedford I-80 / US 6 near Anita 01926-01-011926 current
Iowa 149 65.897 106.051 US 34 in Ottumwa I-80 near Williamsburg 01926-01-011926 current Section from I-80 to US 6 removed 1985
Iowa 150 19 31 US 32 at Homestead US 30 near Cedar Rapids 01926-01-011926 01930-01-011930 Formerly No. 13; replaced by an extended Iowa 149
Iowa 150 10 16 Schleswig Iowa 141 near Denison 01930-01-011930 01930-01-011930 Replaced by an extended Iowa 21
Iowa 150 22.96 36.95 US 30 / Iowa 17 in Jefferson Iowa 64 in Panora 01931-01-011931 01941-01-011941 Replaced by relocated Iowa 17 to avoid conflict with new Iowa 150, which was proposed to become part of US 150
Iowa 150 85.093 136.944 US 218 at Vinton US 52 / Iowa 24 at Calmar 01941-01-011941 current
Iowa 151 13[10] 21 US 71 at Auburn Iowa 17 near Lake City 01926-01-011926 01938-01-011938 Formerly No. 35; renumbered Iowa 188 when US 151 extended into Iowa
Iowa 152 1.31 2.11 US 34 near Murray Murray 01926-01-011926 01980-01-011980 Formerly No. 8
Iowa 152 1.402 2.256 I-35 near Osceola US 69 at Osceola 01980-01-011980 02014-01-012014
Iowa 153 7.0 11.3 Iowa 117 in Wyoming Oxford Junction 01926-01-011926 01930-01-011930 Replaced by an extended Iowa 136
Iowa 153 4.82[6] 7.76 US 218 near North Liberty US 6 near Coralville 01930-01-011930 01957-01-011957 Replaced by rerouted US 218
Iowa 153 1.02[5] 1.64 US 218 near North Liberty North Liberty 01957-01-011957 01968-01-011968 Now Dubuque Street
Iowa 154 12.82 20.63 Iowa 150 near Fayette Iowa 3 in Maryville 01926-01-011926 01980-11-011980 Replaced by Iowa 187
Iowa 155 7.0 11.3 Commerce Iowa 28 (now 9th Street) in Des Moines 01927-01-011927 01931-01-011931 Spur route; now Walnut Woods Drive, Browns Woods Drive, and McKinley Avenue; parts of the road were destroyed
Iowa 155 3.05 4.91 Nodaway US 34 near Nodaway 01933-01-011933 01980-10-011980 Spur route
Iowa 156 4.748 7.641 Iowa 5 near Marysville Bussey 01928-01-011928 02003-01-012003 Spur route; section inside Bussey removed 1980
Iowa 157 0.15 0.24 Monticello US 161 near Monticello 01928-01-011928 01931-01-011931 Spur route; now Cedar Street; was the shortest state highway at the time
Iowa 157 1.032 1.661 US 63 near Lime Springs Lime Springs 01931-01-011931 02003-01-012003 Spur route
Iowa 158 0.65[16] 1.05 Iowa 60 near Carlisle Carlisle 01929-01-011929 01962-01-011962 Spur route
Iowa 159 1.83 2.95 Iowa 92 near Harper Harper 01929-01-011929 01980-01-011980 Spur route
Iowa 160 0.82[8] 1.32 Wild Cat Den State Park US 61 01930-01-011930 01947-01-011947 Renumbered Iowa 389 so Iowa 160 could be reused as a spur of Iowa 60 (this section now Iowa 415)
Iowa 160 2.446 3.936 Iowa 415 at Ankeny I-35 at Ankeny 01947-01-011947 current extended east from US 69 to I-35 in 1980
Iowa 161 1.15[8] 1.85 Iowa 25 in Guthrie County Springbrook State Park 01938-01-011938 01944-01-011944 Renumbered Iowa 384 so Iowa 161 could be reused as a spur of US 61
Iowa 161 0.47[23] 0.76 US 61 in Keokuk Illinois state line 01944-01-011944 01951-01-011951 Replaced by US 136
Iowa 161 1.224 1.970 Iowa 141 at Dedham Iowa 141 near Dedham 01951-01-011951 02003-01-012003 Former route of Iowa 141
Iowa 162 2.660 4.281 Pammel State Park Iowa 92 in Madison County 01930-01-011930 01982-01-011982 Park access road; renumbered Iowa 322 to avoid confusion with nearby US 169
Iowa 162 2.0 3.2 US 18 in Charles City US 218 in Charles City 02000-01-012000 02006-01-012006 Former section of US 218; became part of relocated US 18
Iowa 163 1 1.6 Ambrose A. Call State Park US 169 near Algona 01930-01-011930 01934-01-011934 Park access road; renumbered Iowa 274 when US 163 was designated
Iowa 163 166.270 267.586 US 69 in Des Moines US 34 at Burlington 01937-01-011937 current
Iowa 164 3.79[17] 6.10 US 30 in Boone Ledges State Park 01930-01-011930 01990-01-011990 Park access road
Iowa 165 4.67[21] 7.52 Lewis and Clark State Park US 75 in Onawa 01930-01-011930 01955-01-011955 Park access road; replaced by an extended Iowa 175
Iowa 165 0.410 0.660 Abbott Drive at Omaha, Neb. Abbott Drive at Omaha, Neb. 01956-01-011956 current Only state highway west of the Missouri River
Iowa 166 0.57 0.92 Hastings US 34 near Hastings 01930-01-011930 01980-11-011980 Spur route
Iowa 167 3.21 5.17 Doon US 75 near Doon 01930-01-011930 01980-01-011980 Spur route
Iowa 168 2.70 4.35 Iowa 83 near Minden Shelby 01930-01-011930 01980-01-011980 Spur route
Iowa 169 3 4.8 Elk Horn Iowa 7 at Kimballton 01930-01-011930 01930-01-011930 Spur route; renumbered Iowa 173 when US 169 was created in Iowa
Iowa 170 1.68[22] 2.70 Everly US 18 near Everly 01930-01-011930 01974-01-011974 Spur route
Iowa 171 1 1.6 Wall Lake State Park (now Big Wall Lake Wildlife Area) US 75 in Onawa 01930-01-011930 01935-01-011935 Park access road
Iowa 171 1.05 1.69 Elberon Iowa 21 near Elberon 01935-01-011935 01980-01-011980 Spur route
Iowa 172 4.23 6.81 Elgin US 18 in Clermont 01930-01-011930 01980-01-011980 Spur route
Iowa 173 14.680 23.625 Iowa 83 near Atlantic Iowa 44 at Kimballton 01930-01-011930 current Originally a spur route south to Elk Horn; extended in 1980
Iowa 174 3.61[18] 5.81 Farragut Iowa 2 near Farragut 01930-01-011930 01976-01-011976 Spur route
Iowa 175 221.367 356.256 N-51 at Decatur, Neb US 63 near Hudson 01930-01-011930 current Originally a spur route
Iowa 176 1.21[13] 1.95 Iowa 92 near Cumberland Cumberland 01930-01-011930 01972-01-011972 Spur route
Iowa 177 1 1.6 Carson US 59 near Carson 01930-01-011930 01937-01-011937 Spur route; decommissioned when Iowa 100 (now Iowa 92) extended west through Carson
Iowa 177 3.20 5.15 Iowa 9 near Osage Mitchell 01937-01-011937 01980-01-011980 Spur route
Iowa 178 0.98 1.58 Iowa 9 near Little Rock Little Rock 01930-01-011930 01980-01-011980 Spur route
Iowa 179 0.82 1.32 US 69 near Klemme Klemme 01930-01-011930 01980-01-011980 Spur route
Iowa 180 2.46 3.96 Hayesville Iowa 149 near Hayesville 01930-01-011930 01980-01-011980 Spur route
Iowa 181 3 4.8 Riverside US 161 near Riverside 01930-01-011930 01931-01-011931 Spur route; replaced by an extended Iowa 22
Iowa 181 9.596 15.443 Iowa 5 / Iowa 92 near Pleasantville Melcher-Dallas 01931-01-011931 02003-01-012003 Spur route
Iowa 182 11.44[5] 18.41 Iowa 9 in Lansing MN 26 at New Albin 01930-01-011930 01968-12-311968 Renumbered Iowa 26
Iowa 182 9.051 14.566 US 18 in Inwood Iowa 9 near Larchwood 01969-01-011969 current
Iowa 183 29.952 48.203 Iowa 127 near Mondamin Iowa 141 in Ute 01930-01-011930 current Continued south to US 6 until 1981, and to Council Bluffs city limits until 2003
Iowa 184 26 42 Blockton US 34 near Creston 01930-01-011930 01932-01-011932 Spur route; replaced by an extended Iowa 25
Iowa 184 15.026 24.182 US 275 near Randolph US 59 near Randolph 01934-01-011934 02003-01-012003 Originally a spur route from US 275 to Randolph
Iowa 185 1.51[24] 2.43 Iowa 14 near Conrad Conrad 01934-01-011934 01978-01-011978 Spur route
Iowa 186 3.27 5.26 US 34 near Prescott Prescott 01930-01-011930 01980-01-011980 Spur route
Iowa 186 3.375[25] 5.432 Green Valley State Park Iowa 25 in Creston 01980-01-011980 02001-01-012001 Park access road
Iowa 187 9 14 Iowa 10 in Alton Hospers 01930-01-011930 01931-01-011931 Spur route; replaced by Iowa 33
Iowa 187 28.385 45.681 US 20 near Masonville Iowa 150 near Fayette 01931-01-011931 current Originally was a park access road to Backbone State Park; moved to current route in 1980
Iowa 188 26[10] 42 US 52 / Iowa 10 at Luxemburg US 161 at Cascade 01930-01-011930 01938-01-011938 Replaced by an extended Iowa 136
Iowa 188 13 21 US 71 at Auburn Iowa 17 near Lake City 01938-01-011938 01940-01-011940 Formerly No. 35 and Iowa 151; replaced by an extended Iowa 175
Iowa 188 24.231 38.996 Iowa 3 near Clarksville US 63 near Tripoli 01945-01-011945 current
Iowa 189 1.00 1.61 Bridgewater Iowa 92 north or Bridgwater 01930-01-011930 01980-01-011980 Spur route
Iowa 190 10 16 Ashton Iowa 9 in Sibley 01930-01-011930 01931-01-011931 Spur route; replaced by Iowa 33
Iowa 190 7.46 12.01 Fairbank Iowa 150 near Oelwein 01931-01-011931 01980-01-011980 Replaced by Iowa 281
Iowa 191 22.790 36.677 I-680 near Neola Iowa 37 at Earling 01930-01-011930 current continued south to US 6 until 1981, and to Council Bluffs city limits until 2003
Iowa 192 10 16 US 75 in Sloan Iowa 141 near Hornick 01930-01-011930 01931-01-011931 Became part of an extended Iowa 140
Iowa 192 5.090 8.192 I-29 / I-80 at Council Bluffs I-29 at Council Bluffs 01931-01-011931 02017-01-012017 Renumbered from Iowa 241; was decommissioned in 1975, but restored in 1980; truncated in 2016
Iowa 193 10.852 17.465 US 18 in Fayette County Iowa 24 in Jackson Junction 01930-01-011930 02003-01-012003
Iowa 194 0.86[6] 1.38 Iowa 2 in Clarinda Clarinda Treatment Center 01930-01-011930 01958-01-011958 Hospital access road
Iowa 195 3[10] 4.8 US 69 in Jewell Ellsworth 01930-01-011930 01935-01-011935 Spur route; became part of an extended Iowa 175
Iowa 195 2.896 4.661 Iowa 4 near Plover Plover 01935-01-011935 02003-01-012003 Spur route
Iowa 196 1 1.6 US 20 near Williams Williams 01930-01-011930 01932-01-011932 Was proposed to replace part of US 20, which was to be shifted south, but the plan to relocate US 20 was abandoned in 1932
Iowa 196 10.136 16.312 US 71 / Iowa 175 near Lake View US 20 near Sac City 01935-01-011935 02015-01-012015
Iowa 197 7[10] 11 Stratford Iowa 60 near Stanhope 01930-01-011930 01937-01-011937 Spur route; became part of an extended Iowa 175
Iowa 197 2.567 4.131 Iowa 3 near Albert City Albert City 01937-01-011937 02003-01-012003 Spur route
Iowa 198 2.231 3.590 Garrison US 218 near Garrison 01930-01-011930 02003-01-012003 Spur route; section in Garrison removed 1980
Iowa 199 2.666 4.291 Van Horne US 218 near Van Horne 01930-01-011930 02003-01-012003 Spur route; section in Van Horne removed 1980
Iowa 200 2.163 3.481 US 30 near Keystone Keystone 01930-01-011930 02003-01-012003 Spur route; section in Keystone removed 1980
Iowa 201 4.755 7.652 Norway US 30 / US 218 near Atkins 01930-01-011930 02003-01-012003 Spur route
Iowa 202 8.13[5] 13.08 US 218 Shellsburg 01930-01-011930 01967-01-011967 Spur route
Iowa 202 10.461 16.835 Route 202 at Coatsville, Mo Iowa 2 near Moulton 01969-01-011969 current Formerly Iowa 142
Iowa 203 8.78 14.13 Terril Iowa 9 01930-01-011930 01980-01-011980 Spur route
Iowa 204 5.407 8.702 Iowa 2 near Garden Grove Garden Grove 01930-01-011930 02003-01-012003 Spur route
Iowa 205 2.927 4.711 US 65 near Milo Milo 01930-01-011930 02003-01-012003 Spur route
Iowa 206 6.221 10.012 US 65 near Liberty Center Liberty Center 01930-01-011930 02003-01-012003 Spur route
Iowa 207 3.058 4.921 I-35 near New Virginia New Virginia 01930-01-011930 02003-01-012003 Spur route
Iowa 208 14 23 US 20 Backbone State Park 01930-01-011930 01931-01-011931 Park access road; renumbered Iowa 187
Iowa 208 11.83[22] 19.04 Iowa 2 Blanchard 01931-01-011931 01974-01-011974 Spur route
Iowa 209 0.66[18] 1.06 Iowa 149 near Conroy Conroy 01931-01-011931 01976-01-011976 Spur route
Iowa 210 34.781 55.975 Iowa 141 near Woodward US 65 near Collins 01931-01-011931 current Originally a double spur route from Slater to Maxwell; extended in 1980
Iowa 211 1.63 2.62 Cambridge Iowa 210 near Cambridge 01931-01-011931 01980-01-011980 Spur route
Iowa 212 20 32 Iowa 8 in Dysart US 30 in Belle Plaine 01931-01-011931 01933-01-011933 Replaced by an extended Iowa 73, which was renumbered Iowa 212 9 months later; this portion became part of Iowa 21 a month later
Iowa 212 12.157 19.565 Iowa 21 near Belle Plaine US 6 at Marengo 01934-01-011934 current continued northwest to US 30 from 1937 to 1980
Iowa 213 3.72 5.99 Blakesburg US 34 north of Blakesburg 01931-01-011931 01980-12-011980 Spur route
Iowa 214 5.736 9.231 Iowa 175 near Ivester Wellsburg 01931-01-011931 02003-01-012003 Spur route
Iowa 215 8.738 14.062 Union Iowa 175 in Eldora 01931-01-011931 02003-01-012003 Spur route
Iowa 216 1.70[15] 2.74 Iowa 5 Exline 01931-01-011931 01981-01-011981 Spur route
Iowa 217 4.96[17] 7.98 Breda US 71 01931-01-011931 01989-01-011989 Spur route
Iowa 219 1.53 2.46 Iowa 9 near Lake Park Lake Park 01931-01-011931 01980-12-011980 Spur route
Iowa 220 7.233 11.640 US 6 at South Amana US 151 at Amana 01931-01-011931 current Continued east to East Amana and south to Upper South Amana until 1980
Iowa 221 11[10] 18 US 71 near Albert City Albert City 01931-01-011931 01937-01-011937 Spur route
Iowa 221 42.61[8] 68.57 Iowa 5 near Cherokee Iowa 17 / Iowa 10 at Pocahontas 01937-01-011937 01945-01-011945 Extended in both directions and renumbered Iowa 3
Iowa 221 3.909 6.291 I-35 near Story City Roland 01947-01-011947 02003-01-012003 Spur route; section from I-35 to US 69 removed 1980
Iowa 222 15.12 24.33 Iowa 15 near Ottosen Livermore 01931-01-011931 01980-01-011980 Spur route
Iowa 223 12.22[9] 19.67 Iowa 330 near Baxter Iowa 14 near Baxter 01931-01-011931 01997-01-011997 Originally a spur route; extended west from Baxter in 1980
Iowa 224 10.587 17.038 US 6 near Kellogg Iowa 14 near Laurel 01931-01-011931 current Originally a spur route; extended north from Kellogg in 1980
Iowa 225 7.688 12.373 Sully Iowa 146 in Searsboro 01931-01-011931 02003-01-012003 Spur route
Iowa 226 10.78 17.35 US 18 Titonka 01931-01-011931 01980-12-011980 Spur route
Iowa 227 5.39[26] 8.67 US 218 near Stacyville Stacyville 01931-01-011931 01991-01-011991 Spur route
Iowa 228 0.85[19] 1.37 US 6 (this section became County Road F58 in 2003) near Walcott Walcott 01931-01-011931 01964-01-011964 Spur route
Iowa 229 5.233 8.422 Garwin US 63 in Tama County 01931-01-011931 02003-01-012003 Spur route
Iowa 230 1[10] 1.6 Sergeant Bluff US 75 near Sergeant Bluff 01931-01-011931 01934-01-011934 Spur route; decommissioned because US 75 was rerouted through Sergeant Bluff, and Iowa 230 was reassigned to the old route of US 75; part later restored as Iowa 378 in 1942
Iowa 230 8.60[19] 13.84 US 75 near Sergeant Bluff US 75 in Sioux City 01934-01-011934 01965-01-011965 Spur route
Iowa 231 1.83[15] 2.95 Iowa 10 near Ireton Ireton 01931-01-011931 01981-01-011981 Spur route
Iowa 231 4.068 6.547 US 34 west of New London US 34 east of New London 02000-01-012000 02003-01-012003 Former section of US 34
Iowa 232 1.99 3.20 Earlham I-80 near Earlham 01931-01-011931 01980-01-011980 Spur route
Iowa 233 5.30[17] 8.53 Albion Iowa 14 near Rhodes 01931-01-011931 01989-01-011989 Spur route; became part of relocated Iowa 330
Iowa 234 6.72[17] 10.81 US 30 in State Center Iowa 330 near Rhodes 01931-01-011931 01994-01-011994 Originally a spur route; only the section north of CR E63 remained after 1989
Iowa 235 3 4.8 Iowa 234 near Rhodes Rhodes 01931-01-011931 01935-01-011935 Spur route
Iowa 235 1.24[5] 2.00 Rhodes Iowa 234 near Rhodes 01935-01-011935 01966-01-011966 Spur route; renumbered Iowa 245 when I-235 was designated
Iowa 236 1.18[20] 1.90 Templeton US 71 / Iowa 141 near Templeton 01931-01-011931 01987-01-011987 Spur route
Iowa 237 1.41 2.27 Iowa 9 near Ocheyedan Ocheyedan 01931-01-011931 01981-01-011981 Spur route; section in Ocheyedan removed in 1980
Iowa 238 1.063 1.711 Iowa 9 near Harris Harris 01931-01-011931 02003-01-012003 Spur route; was decommissioned in 1981, but was restored in 1987
Iowa 239 0.510 0.821 Waubonsie State Park Iowa 2 in Fremont County 01931-01-011931 02003-01-012003 Park access road
Iowa 240 6.389 10.282 Royal US 71 in Clay County 01931-01-011931 02003-01-012003 Spur route
Iowa 241 5 8.0 US 34 / US 275 at Council Bluffs US 34 / US 275 01931-01-011931 01931-01-011931 Renumbered Iowa 192
Iowa 241 0.99 1.59 Readlyn Iowa 3 near Readlyn 01931-01-011931 01980-01-011980 Spur route
Iowa 242 5.855 9.423 US 34 in Mills County Silver City 01931-01-011931 02003-01-012003 Spur route
Iowa 243 7.97 12.83 Iowa 140 near Kingsley Pierson 01931-01-011931 01980-01-011980 Spur route
Iowa 243 0.559 0.900 Black Hawk Lake State Park US 71 / Iowa 175 near Wall Lake 01980-01-011980 02003-01-012003 Park access road
Iowa 244 1.96 3.15 Henderson US 59 01931-01-011931 01980-01-011980 Spur route
Iowa 244 0.771 1.241 I-80 near Neola Iowa 191 in Neola 01980-01-011980 02003-01-012003
Iowa 245 1.54[16] 2.48 Iowa 9 near Estherville Fort Defiance State Park 01931-01-011931 01961-01-011961 Park access road
Iowa 245 1.24[17] 2.00 Rhodes Iowa 234 near Rhodes 01966-01-011966 01990-01-011990 Spur route; portion outside of Rhodes removed in 1989
Iowa 246 3.26 5.25 US 61 in Zwingle La Motte 01931-01-011931 01981-01-011981 Spur route; section outside La Motte deleted in 1980
Iowa 247 0.68[19] 1.09 Chelsea Iowa 212 near Chelsea 01931-01-011931 01963-01-011963 Spur route
Iowa 248 0.54 0.87 Independence State Hospital US 20 in Independence 01931-01-011931 01980-01-011980 Hospital access road
Iowa 249 0.665 1.070 Iowa 78 near Winfield Winfield 01931-01-011931 02003-01-012003 Spur route
Iowa 250 0.59 0.95 Lakota US 169 / Iowa 9 near Lakota 01932-01-011932 01980-01-011980 Spur route
Iowa 251 1.71 2.75 St. Charles I-35 near St. Charles 01932-01-011932 01980-01-011980 Spur route
Iowa 252 0.584 0.940 US 61 / Iowa 92 near Grandview Grandview 01932-01-011932 02003-01-012003 Spur route
Iowa 253 0.932 1.500 Iowa 14 near Williamson Williamson 01932-01-011932 02003-01-012003 Spur route
Iowa 254 0.45[5] 0.72 Iowa 92 at Massena Massena 01932-01-011932 01968-12-311968 Spur route; renumbered Iowa 322
Iowa 254 7.91 12.73 Iowa 9 near Buffalo Center MN 254 near Rake 01969-01-011969 01980-01-011980 Spur route; formerly Iowa 322
Iowa 254 2.7 4.3 dead end northwest of Nashua dead end southeast of Nashua 02003-01-012003 02004-01-012004 Former section of US 218
Iowa 255 2.26 3.64 Orchard US 218 near Orchard 01932-01-011932 01980-01-011980 Spur route
Iowa 256 0.80 1.29 Iowa 17 near Corwith Corwith 01932-01-011932 01980-01-011980 Spur route
Iowa 257 0.58[16] 0.93 US 18 near Dickens Dickens 01933-01-011933 01960-01-011960 Spur route
Iowa 258 1.989 3.201 I-35 near Van Wert US 69 near Van Wert 01933-01-011933 02003-01-012003 Originally a spur route
Iowa 259 1.001 1.611 US 169 near Tingley Tingley 01933-01-011933 02003-01-012003 Spur route; section in Tingley removed 1980
Iowa 260 2.12[24] 3.41 Shannon City US 169 near Shannon City 01933-01-011933 01977-01-011977 Spur route
Iowa 261 33.02[16] 53.14 Iowa 1 in Iowa City US 151 01930-01-011930 01962-01-011962 Numbered as a branch of US 161; replaced by relocated Iowa 1
Iowa 262 1.99 3.20 US 69 near Galt Galt 01933-01-011933 01980-01-011980 Spur route
Iowa 263 2.14 3.44 Coulter Latimer 01933-01-011933 01980-01-011980 Double spur route with Iowa 3
Iowa 263 12.511 20.135 Iowa 14 in Grundy County US 20 near Cedar Falls 02000-01-012000 02003-01-012003 Former section of US 20
Iowa 264 2.39 3.85 Linn Grove Iowa 10 near Linn Grove 01933-01-011933 01980-01-011980 Spur route
Iowa 265 2.08[16] 3.35 Kent US 34 near Kent 01934-01-011934 01961-01-011961 Spur route
Iowa 266 1.709 2.750 US 69 near Weldon Weldon 01934-01-011934 02003-01-012003 Spur route; section in Weldon removed 1980
Iowa 267 1.19 1.92 Iowa 93 near Randalia Randalia 01934-01-011934 01980-01-011980 Spur route
Iowa 268 6.29[13] 10.12 US 59 near Irwin Irwin 01934-01-011934 01971-01-011971 Spur route; became part of an extended Iowa 37
Iowa 269 3.01 4.84 Iowa 16 near Stockport Stockport 01934-01-011934 01980-01-011980 Spur route
Iowa 270 1.80 2.90 Iowa 16 near Hillsboro Hillsboro 01934-01-011934 01980-01-011980 Spur route
Iowa 271 7[10] 11 Marne US 71 in Atlantic 01934-01-011934 01935-01-011935 Spur route; replaced by an extended Iowa 83
Iowa 271 0.84 1.35 Iowa 4 near Yale Yale 01935-01-011935 01980-01-011980 Spur route
Iowa 272 6.45[26] 10.38 Elma US 63 near Elma 01934-01-011934 01992-01-011992 Spur route; formerly Iowa 52
Iowa 273 10.025 16.134 Lake Wapello State Park US 63 near Drakesville 01935-01-011935 02003-01-012003 Park access road
Iowa 274 1.99[12] 3.20 Ambrose A. Call State Park US 169 near Algona 01934-01-011934 01986-01-011986 Park access road; formerly Iowa 163
Iowa 276 4.711 7.582 Spirit Lake city limits Minnesota state line 01934-01-011934 02003-01-012003 Park access road
Iowa 277 6.24 10.04 Numa Iowa 5 near Centerville 01935-01-011935 01980-01-011980 Spur route
Iowa 278 2.05 3.30 Rathbun Iowa 5 near Rathbun 01935-01-011935 01980-01-011980 Spur route
Iowa 279 1.983 3.191 US 30 / US 218 near Atkins Atkins 01935-01-011935 02003-01-012003 Spur route; section in Atkins removed 1980
Iowa 280 2.62[19] 4.22 US 30 / US 218 near Newhall Newhall 01935-01-011935 01965-01-011965 Spur route; renumbered Iowa 287 when I-280 was designated
Iowa 281 28.166 45.329 Waterloo city limits Iowa 150 at Oelwein 01935-01-011935 current Originally a spur route east to Dunkerton; extended in 1980
Iowa 282 5.283 8.502 Quasqueton Iowa 939 near Winthrop 01935-01-011935 02003-01-012003 Spur route
Iowa 283 5.861 9.432 Brandon Iowa 150 near Brandon 01935-01-011935 02003-01-012003 Spur route
Iowa 284 5.58 8.98 Aurora Iowa 187 at Lamont 01935-01-011935 01980-01-011980 Spur route
Iowa 285 0.796 1.281 US 30 in Arcadia Arcadia 01935-01-011935 02003-01-012003 Spur route
Iowa 286 9.932 15.984 US 30 in Glidden Lanesboro 01935-01-011935 02003-01-012003 Spur route
Iowa 287 7.52[4] 12.10 Farnhamville Iowa 47 in Farnhamville 01935-01-011935 01940-01-011940 Spur route; replaced by an extended Iowa 175
Iowa 287 6.19[19] 9.96 Bradgate Iowa 3 in Gilmore City 01942-01-011942 01965-01-011965 Spur route
Iowa 287 1.833 2.950 US 30 / US 218 near Newhall Newhall 01965-01-011965 02003-01-012003 Spur route; section in Newhall removed 1980
Iowa 288 4.58 7.37 US 65 near Manly Plymouth 01935-01-011935 01980-01-011980 Spur route
Iowa 289 6.14 9.88 Alta Vista US 63 near Lourdes 01935-01-011935 01980-01-011980 Spur route
Iowa 289 2.252 3.624 US 61 near Fort Madison US 61 near Fort Madison 02000-01-012000 02003-01-012003 Former section of US 61 southwest of Fort Madison; had two sections
Iowa 290 1.99 3.20 Farmersburg Iowa 13 near Farmersburg 01935-01-011935 01980-01-011980 Spur route
Iowa 291 1.01 1.63 Low Moor US 30 near Low Moor 01935-01-011935 01979-01-011979 Spur route
Iowa 292 3.17 5.10 Linden Iowa 44 01935-01-011935 01980-01-011980 Spur route
Iowa 293 1.42 2.29 Iowa 90 near Van Meter Van Meter 01935-01-011935 01980-01-011980 Spur route
Iowa 294 6.147 9.893 Iowa 2 in Decatur County Grand River 01935-01-011935 02003-01-012003 Spur route
Iowa 295 5.09 8.19 Westgate Iowa 150 near Maynard 01935-01-011935 01980-01-011980 Spur route
Iowa 296 4.44 7.15 CR C24 near Wadena Iowa 56 near Wadena 01935-01-011935 01980-01-011980 Spur route
Iowa 296 0.275[25] 0.443 — — 02000-01-012000 02011-01-012011 Former section of Iowa 28
Iowa 297 4.25[4] 6.84 Alexander Iowa 10 01935-01-011935 01939-01-011939 Spur route; replaced by an extended Iowa 107
Iowa 297 3.543 5.702 Gilbertville Raymond 01940-01-011940 02003-01-012003 Double spur with I-380
Iowa 298 4.22[5] 6.79 Iowa 60 near Kamrar Kamrar 01935-01-011935 01966-01-011966 Spur route; until 1958 went from US 69 to Kamrar
Iowa 299 5.556 8.942 New Providence Iowa 175 near Eldora 01935-01-011935 02003-01-012003 Spur route
Iowa 300 1.411 2.271 Modale I-29 near Modale 01935-01-011935 02003-01-012003 Spur route
Iowa 301 2.045 3.291 I-29 near Little Sioux Little Sioux 01935-01-011935 02003-01-012003 Spur route
Iowa 302 3.00 4.83 Thor Iowa 3 near Thor 01935-01-011935 01980-01-011980 Spur route
Iowa 303 3.51[15] 5.65 US 34 near Fairfield Libertyville 01935-01-011935 01981-01-011981 Spur route
Iowa 304 1.59 2.56 Iowa 78 near Ollie Ollie 01935-01-011935 01980-01-011980 Spur route
Iowa 305 2.554 4.110 Letts US 61 / Iowa 92 near Letts 01935-01-011935 02003-01-012003 Spur route
Iowa 306 0.783 1.260 US 65 near Derby Derby 01935-01-011935 02003-01-012003 Spur route
Iowa 307 5.31[18] 8.55 US 169 near East Peru East Peru 01935-01-011935 01975-01-011975 Spur route; decommissioned when US 169 was rerouted south of Winterset
Iowa 308 7.32[5] 11.78 US 63 near New Sharon Barnes City 01935-01-011935 01966-01-011966 Spur route
Iowa 309 2.32 3.73 Beacon Iowa 137 in Oskaloosa 01935-01-011935 01980-01-011980 Spur route
Iowa 310 1.68[5] 2.70 Iowa 92 near Harvey Harvey 01935-01-011935 01966-01-011966 Spur route
Iowa 311 4.73[17] 7.61 Liscomb Iowa 14 near Liscomb 01935-01-011935 01989-01-011989 Spur route; section in Liscomb removed 1980
Iowa 312 6.19 9.96 Iowa 9 near Riceville McIntire 01935-01-011935 01980-01-011980 Spur route
Iowa 312 0.883 1.421 — — 02002-01-012002 02003-01-012003 Former section of US 65; had two sections
Iowa 313 1.591[25] 2.560 US 59 near Melvin Melvin 01935-01-011935 02002-01-012002 Spur route; section in Melvin removed 1980
Iowa 314 6.277 10.102 Ayrshire US 18 near Ruthven 01935-01-011935 02003-01-012003 Spur route
Iowa 315 4.158 6.692 Iowa 4 near Palmer Palmer 01935-01-011935 02003-01-012003 Spur route
Iowa 316 5.183 8.341 Iowa 5 near Swan Runnells city limits 01935-01-011935 current Spur route; continued south to Iowa 163 from 1981 to 2003
Iowa 317 0.71 1.14 US 65 near Zearing Zearing 01935-01-011935 01980-01-011980 Spur route; continued west to McCallsburg until 1954
Iowa 318 5.51 8.87 Clutier Iowa 21 near Clutier 01935-01-011935 01980-01-011980 Spur route
Iowa 319 0.50 0.80 Gravity Iowa 148 at Gravity 01935-01-011935 01980-01-011980 Spur route; continued east to Conway until 1961
Iowa 320 4.25[19] 6.84 US 169 near Badger Badger 01935-01-011935 01963-01-011963 Spur route
Iowa 321 6.03[19] 9.70 Clare Iowa 5 near Clare 01935-01-011935 01963-01-011963 Spur route
Iowa 322 7.91[11] 12.73 Iowa 9 near Buffalo Center MN 254 near Rake 01935-01-011935 01968-12-311968 Spur route; renumbered Iowa 254
Iowa 322 0.45[13] 0.72 Iowa 92 at Massena Massena 01969-01-011969 01972-01-011972 Spur route; formerly Iowa 254
Iowa 322 2.660 4.281 Pammel State Park Iowa 92 in Madison County 01982-01-011982 02003-01-012003 Park access road; formerly Iowa 162
Iowa 323 3.74 6.02 Iowa 17 near Woolstock Woolstock 01935-01-011935 01980-01-011980 Spur route
Iowa 324 0.79[21] 1.27 Lawton US 20 near Lawton 01935-01-011935 01954-01-011954 Spur route; decommissioned when US 20 was rerouted closer to Lawton
Iowa 324 0.510 0.821 Iowa 175 near Onawa Lewis and Clark State Park 01956-01-011956 02003-01-012003 Park access road
Iowa 325 3.617 5.821 Spillville US 52 near Calmar 01935-01-011935 02003-01-012003 Spur route; section in Spillville removed 1980
Iowa 326 2.18[15] 3.51 Bristow Iowa 3 near Bristow 01935-01-011935 01981-01-011981 Spur route
Iowa 327 2.070 3.331 Iowa 276 in Spirit Lake near Orleans 01935-01-011935 02003-01-012003 Spur route
Iowa 328 2.29 3.69 US 20 near Galva Galva 01935-01-011935 01980-12-011980 Spur route
Iowa 329 4.85 7.81 US 169 at Boxholm Pilot Mound 01935-01-011935 01980-01-011980 Spur route
Iowa 330 2.31[8] 3.72 Ionia US 18 near Ionia 01935-01-011935 01948-01-011948 Spur route; renumbered Iowa 393 so Iowa 330 could be reused as a spur of US 30
Iowa 330 47.748 76.843 I-80 / US 6 / US 65 at Altoona Iowa 14 near Albion 01948-01-011948 current Originally went from US 30 to Marshalltown; extended west in 1969 and was relocated to bypass Marshalltown in 1989
Iowa 331 1.83[5] 2.95 Eldridge US 61 near Eldridge 01935-01-011935 01967-01-011967 Spur route
Iowa 331 3.801 6.117 Dead end near I-35 in Des Moines Iowa 28 in Des Moines 02002-01-012002 02005-01-012005 Former section of Iowa 5
Iowa 332 1.00 1.61 Pilot Knob State Park Iowa 9 near Forest City 01935-01-011935 01980-01-011980 Park access road
Iowa 333 1.558 2.507 I-29 at Hamburg US 275 in Hamburg 01935-01-011935 current Originally a spur route; section from county line to US 71 removed 1980; reassigned to current route that year, but section from US 275 to US 59 removed 2003
Iowa 334 1.87 3.01 US 63 near Frederika Frederika 01935-01-011935 01980-01-011980 Spur route
Iowa 334 6.600[27] 10.622 — — 02006-01-012006 02007-01-012007 Former section of US 34
Iowa 335 0.64 1.03 Iowa 141 near Dawson Dawson 01935-01-011935 01980-01-011980 Spur route
Iowa 335 1.536[25] 2.472 Iowa 163 in Otley Iowa 163 in Otley 01999-01-011999 02001-01-012001 Former section of Iowa 163
Iowa 336 2.48 3.99 Iowa 150 near Rowley Rowley 01936-01-011936 01980-01-011980 Spur route
Iowa 337 3.36 5.41 Iowa 9 near Grafton Grafton 01936-01-011936 01980-01-011980 Spur route
Iowa 337 2.764[25] 4.448 US 218 in Charles City US 18 in Charles City 02000-01-012000 02001-01-012001 Former section of US 218
Iowa 337 1.085[28] 1.746 US 151 in Langworthy US 151 in Langworthy 02003-01-012003 02004-01-012004 Former section of US 151
Iowa 338 1.02[13] 1.64 Bondurant US 65 01936-01-011936 01972-01-011972 Spur route
Iowa 339 6.15[29] 9.90 George Iowa 9 near George 01936-01-011936 02000-01-012000 Spur route
Iowa 340 2.231 3.590 Pikes Peak State Park Iowa 76 in McGregor 01936-01-011936 02003-01-012003 Park access road
Iowa 340 1.160[27] 1.867 Dead end in Batavia US 34 in Batavia 02005-01-012005 02007-01-012007 Former section of US 34
Iowa 341 2.10[20] 3.38 Lost Island Park US 18 near Ruthven 01936-01-011936 01988-01-011988 Park access road
Iowa 341 0.062 0.100 Ruthven US 18 near Ruthven 01993-01-011993 02003-01-012003 Spur route; restoration of part of the previous Iowa 341
Iowa 342 0.95 1.53 Iowa 141 near Jamaica Jamaica 01936-01-011936 01980-01-011980 Spur route
Iowa 342 2.2 3.5 Dead end north of Eddyville Iowa 137 in Eddyville 02004-01-012004 02005-01-012005 Former section of US 63
Iowa 343 1.01 1.63 Iowa 333 near Northboro Northboro 01937-01-011937 01980-01-011980 Spur route
Iowa 344 7.06[8] 11.36 Iowa 2 in Bedford Iowa 319 near Conway 01937-01-011937 01943-01-011943 Park access road; became part of an extended Iowa 49
Iowa 344 1.075[25] 1.730 State fish hatchery US 169 near Mount Ayr 01943-01-011943 02001-01-012001 Fish hatchery access road
Iowa 345 0.42[16] 0.68 Iowa 17 near Graettinger Graettinger 01937-01-011937 01960-01-011960 Spur route
Iowa 346 12.470 20.069 US 218 / Iowa 27 at Nashua US 18 / US 63 near New Hampton 01937-01-011937 current
Iowa 347 1.08[12] 1.74 Locust Street at Omaha, Neb. Locust Street at Omaha, Neb. 01937-01-011937 01986-01-011986
Iowa 348 0.88[5] 1.42 Iowa 347 Carter Lake 01937-01-011937 01967-01-011967
Iowa 349 1.032 1.661 Lake Ahquabi State Park US 65 / US 69 near Indianola 01938-01-011938 02003-01-012003 Park access road
Iowa 350 2.55[6] 4.10 US 6 near Davenport Iowa 122 in Davenport 01938-01-011938 01958-01-011958 Now Hickory Grove Road
Iowa 351 0.86 1.38 Rembrandt US 71 near Rembrandt 01938-01-011938 01981-01-011981 Spur route; section in Rembrandt removed 1980
Iowa 352 0.75 1.21 Truesdale US 71 near Truesdale 01938-01-011938 01981-01-011981 Spur route; section in Truesdale removed 1980
Iowa 353 0.35 0.56 Rowan Iowa 3 at Rowan 01938-01-011938 01980-01-011980 Spur route
Iowa 354 0.35[16] 0.56 Mallard Iowa 17 near Mallard 01938-01-011938 01960-01-011960 Spur route
Iowa 355 0.33[16] 0.53 Iowa 175 near Radcliffe Radcliffe 01938-01-011938 01961-01-011961 Spur route
Iowa 356 6.37[15] 10.25 Packwood Iowa 1 near Packwood 01938-01-011938 01981-01-011981 Spur route; section in Packwood removed 1980
Iowa 356 0.949 1.527 Milford West Okoboji 02000-01-012000 02003-01-012003 Former section of US 71
Iowa 357 0.59[19] 0.95 Blockton Iowa 25 near Blockton 01938-01-011938 01964-01-011964 Spur route
Iowa 358 1.55 2.49 Whittemore US 18 / Iowa 15 near Whittemore 01938-01-011938 01980-01-011980 Spur route
Iowa 359 7.383 11.882 Buckeye Iowa 941 in Alden 01938-01-011938 02003-01-012003 Spur route
Iowa 360 0.64[19] 1.03 Iowa 5 near Newell Newell 01938-01-011938 01964-01-011964 Spur route
Iowa 361 0.38[16] 0.61 Bayard Iowa 25 near Bayard 01938-01-011938 01962-01-011962 Spur route
Iowa 362 1.17 1.88 Macedonia US 59 near Macedonia 01938-01-011938 01980-01-011980 Spur route
Iowa 362 5.469 8.802 DeSoto National Wildlife Refuge I-29 at Loveland 01980-01-011980 02003-01-012003 Park access road
Iowa 363 1.616 2.601 Iowa 150 near Urbana I-380 / Iowa 27 in Urbana 01939-01-011939 02003-01-012003 Spur route; formerly Iowa 92; rerouted to end at I-380 in 1984
Iowa 364 6.140 9.881 Iowa 76 near Waukon Junction Harpers Ferry 01938-01-011938 02003-01-012003 Spur route; section north of the bridge in Harpers Ferry removed 1980
Iowa 365 1.07 1.72 Tracy Iowa 964 near Tracy 01939-01-011939 01980-11-011980 Spur route; did not extend to relocated Iowa 92 when Iowa 92 was rerouted in 1978
Iowa 366 0.51[19] 0.82 US 75 near Blencoe Blencoe 01939-01-011939 01964-01-011964 Spur route
Iowa 367 6 9.7 Nebraska border US 275 in Council Bluffs 01939-01-011939 01941-01-011941 Replaced by US 275
Iowa 367 3.39 5.46 Rutland US 169 near Humboldt 01942-01-011942 01980-01-011980 Spur route
Iowa 368 0.50[19] 0.80 Renwick Iowa 60 near Renwick 01939-01-011939 01964-01-011964 Spur route
Iowa 368 0.140 0.225 200th Avenue northwest of Hartford Dead end 02002-01-012002 current Former section of Iowa 5
Iowa 369 2 3.2 Iowa 92 near Knoxville Coal mine 01939-01-011939 01941-01-011941 Now County Road T17
Iowa 369 5.54 8.92 Iowa 2 near Moulton Unionville 01942-01-011942 01980-01-011980 Spur route
Iowa 370 0.46 0.74 Iowa 57 Dike 01939-01-011939 01952-01-011952 Spur route
Iowa 370 3.265 5.255 N-370 at Bellevue, Neb. I-29 / US 275 near Council Bluffs 01953-01-011953 02014-01-012014 Originally ended at US 275 (pre-2003 route); decommissioned in 1980, but restored west of I-29 in 1983
Iowa 371 0.715 1.151 Lake Keomah State Park Iowa 92 near Keomah Village 01939-01-011939 02003-01-012003 Park access road
Iowa 372 2.60[5] 4.18 Preparation Canyon State Park Iowa 183 near Moorhead 01939-01-011939 01968-01-011968 Park access road
Iowa 373 4.05[19] 6.52 Iowa 13 near Waterville Waterville 01942-01-011942 01964-01-011964 Spur route
Iowa 373 2.307 3.713 — — 02002-01-012002 02003-01-012003 Former section of US 61 just southwest of Muscatine
Iowa 374 7.99 12.86 US 71 near Sioux Rapids Webb 01942-01-011942 01980-01-011980 Spur route
Iowa 374 3.6[30] 5.8 Iowa 163 in Monroe Dead end in Monroe 02000-01-012000 02000-01-012000 Former section of Iowa 163
Iowa 375 2.95[13] 4.75 US 6 in Council Bluffs US 275 / Iowa 92 in Council Bluffs 01941-01-011941 01971-01-011971 Now 4th Street, 9th Avenue, 3rd Street, and Harry Langdon Boulevard
Iowa 376 0.46[5] 0.74 Iowa 3 near Colesburg Colesburg 01942-01-011942 01965-01-011965 Spur route
Iowa 376 10.334 16.631 I-129 / US 20 / US 75 at Sioux City US 75 at Sioux City 02001-01-012001 current US 75 Business in Sioux City
Iowa 377 0.55 0.89 Harbor Drive in Sioux City Iowa 970 in Sergeant Bluff 01942-01-011942 01980-01-011980 Airport access road
Iowa 378 2.13[22] 3.43 Harbor Drive in Sioux City Iowa 475 (later Iowa 970) in Sergeant Bluff 01942-01-011942 01974-01-011974 Airport access road
Iowa 379 4.59 7.39 Joice Iowa 105 near Lake Mills 01942-01-011942 01980-01-011980 Spur route
Iowa 380 1.30[11] 2.09 Ottumwa Regional Airport US 63 near Ottumwa 01943-01-011943 01969-01-011969 Renumbered Iowa 389 when I-380 was designated
Iowa 381 1.10[23] 1.77 Iowa 84 near Cedar Rapids US 218 (now Club Road) near Cedar Rapids 01943-01-011943 01953-01-011953 Airport access road; now Wright Brothers Boulevard
Iowa 381 0.67 1.08 Iowa 254 near Rake Rake 01954-01-011954 01980-01-011980 Spur route
Iowa 382 4.792 7.712 Lake MacBride State Park Iowa 1 in Solon 01943-01-011943 02003-01-012003 Park access road
Iowa 383 1.311 2.110 US 69 near Randall Randall 01944-01-011944 02003-01-012003 Spur route
Iowa 384 1.231 1.981 Iowa 25 in Guthrie County Springbrook State Park 01944-01-011944 02003-01-012003 Park access road
Iowa 385 3.151 5.071 Pacific Junction US 34 / US 275 in Glenwood 01945-01-011945 02003-01-012003 Spur route
Iowa 386 2.685 4.321 US 52 / Iowa 3 near Sageville US 52 / Iowa 3 / Iowa 32 near Dubuque 01946-01-011946 02003-01-012003
Iowa 387 1.04[31] 1.67 US 65 near Zearing Zearing 01946-01-011946 01950-01-011950 Spur route; replaced by an extended Iowa 317
Iowa 387 0.52 0.84 Davenport Municipal Airport US 61 3 miles north of Davenport 01951-01-011951 01979-01-011979 Airport access road
Iowa 388 0.35 0.56 Calumet US 59 at Calumet 01946-01-011946 01980-01-011980 Spur route
Iowa 389 0.82[16] 1.32 Wild Cat Den State Park Iowa 22 01946-01-011946 01962-01-011962 Park access road
Iowa 389 1.25[9] 2.01 Ottumwa Regional Airport US 63 near Ottumwa 01969-01-011969 01997-01-011997 Decommissioned when the first section of Ottumwa bypass opened
Iowa 390 0.74[7] 1.19 Marathon Iowa 10 near Marathon 01946-01-011946 01980-01-011980 Spur route
Iowa 390 2.113 3.401 South of Plainfield North of Plainfield 02002-01-012002 02003-01-012003 Former section of US 218
Iowa 391 0.50[13] 0.80 Clinton Municipal Airport US 30 near Clinton 01946-01-011946 01972-01-011972 Airport access road; now 60th Street
Iowa 392 0.63[22] 1.01 Dubuque Regional Airport US 61 near Dubuque 01946-01-011946 01974-01-011974 Airport access road; now Airport Road
Iowa 392 3.09[29] 4.97 Iowa 163 in Prairie City Iowa 163 in Prairie City 01998-01-011998 02000-01-012000 Former section of Iowa 163
Iowa 393 2.40 3.86 Ionia US 18 near Ionia 01948-01-011948 01980-01-011980 Spur route
Iowa 394 2.27 3.65 Iowa 2 near Denmark Iowa Army Ammunition Plant southern entrance 01948-01-011948 01980-01-011980 Spur route
Iowa 394 10.454 16.824 Route B at St. Francisville, Mo. US 218 near Donnellson 01980-01-011980 02005-01-012005 Replaced by Iowa 27
Iowa 395 0.53 0.85 Iowa 330 near Melbourne Melbourne 01948-01-011948 01983-01-011983 Spur route; section in Melbourne removed 1980
Iowa 396 0.89[21] 1.43 Iowa 14 in Newton US 6 in Newton 01948-01-011948 01954-01-011954 Now 19th Avenue and 8th Street
Iowa 396 0.52 0.84 Iowa 175 near Farnhamville Farnhamville 01954-01-011954 01980-01-011980 Spur route
Iowa 397 0.69[17] 1.11 Paton Iowa 144 near Paton 01948-01-011948 01991-01-011991 Spur route
Iowa 398 1.24 2.00 Brooklyn US 6 near Brooklyn 01956-01-011956 01980-01-011980 Spur route
Iowa 399 0.65[19] 1.05 Iowa 74 near Palo Palo 01956-01-011956 01964-01-011964 Spur route
Iowa 400 4.54 7.31 Truro I-35 near Truro 01957-01-011957 01980-01-011980 Spur route; not completed until 1958
Iowa 401 5.32[17] 8.56 Camp Dodge US 6 in Des Moines 01958-01-011958 01991-01-011991 Replaced by an extended Iowa 28 south of I-80; rest decommissioned
Iowa 402 20.9 33.6 Iowa 8 near Dysart Iowa 412 in Waterloo 01957-01-011957 01968-12-311968 Replaced by Iowa 21
Iowa 403 0.70 1.13 Cushing US 20 near Cushing 01958-01-011958 01980-01-011980 Spur route
Iowa 403 0.477 0.768 SD 48 near Akron Iowa 12 in Akron 01980-01-011980 02003-01-012003
Iowa 404 1.391 2.239 Montrose US 61 near Montrose 01960-01-011960 02003-01-012003 Spur route
Iowa 404 1.629 2.622 Iowa 3 in Le Mars US 75 at Le Mars 02006-01-012006 current Section of US 75 Business in Le Mars
Iowa 405 0.249 0.401 Lone Tree Iowa 22 near Lone Tree 01958-01-011958 02003-01-012003 Spur route; section in Lone Tree removed 1980
Iowa 406 2.275 3.661 US 34 near West Burlington Burlington 01957-01-011957 02003-01-012003 Formerly Iowa 80; spur route
Iowa 407 0.47[5] 0.76 Iowa 99 in Oakville Oakville 01957-01-011957 01967-01-011967 Formerly Iowa 7; spur route
Iowa 408 7.40 11.91 US 169 near Lu Verne Lu Verne 01957-01-011957 01980-01-011980 Spur route
Iowa 409 0.41[5] 0.66 US 18 near Garner Garner 01957-01-011957 01968-01-011968 Formerly Iowa 35; spur route
Iowa 410 2.157 3.471 Backbone State Park Iowa 3 / Iowa 13 near Strawberry Point 01958-01-011958 02003-01-012003 Park access road
Iowa 411 0.98[19] 1.58 US 6 at Marengo CR F15 north of Marengo 01957-01-011957 01964-01-011964 Spur route
Iowa 412 4.72[14] 7.60 US 63 in Waterloo US 218 in Waterloo 01960-01-011960 01983-01-011983 San Marnan Drive in Waterloo
Iowa 413 3.95[19] 6.36 US 20 in Fort Dodge Fort Dodge Airport 01960-01-011960 01980-01-011980 Spur route; continued north to Iowa 320 near Badger until Iowa 320 was decommissioned
Iowa 414 6.12[13] 9.85 US 6 near Lewis US 71 near Atlantic 01958-01-011958 01972-01-011972 Former section of Iowa 92; was Iowa 100 for a month in 1958
Iowa 415 16.857 27.129 US 6 in Des Moines Iowa 141 near Granger 01959-01-011959 current
Iowa 416 4.89[11] 7.87 Centralia US 20 01959-01-011959 01969-01-011969 Former section of US 20; sections were renumbered Iowa 418 and Iowa 420 in 1960
Iowa 417 5.38[5] 8.66 US 67 near Riverdale US 67 near LeClaire 01960-01-011960 01968-01-011968 Former section of US 67
Iowa 418 0.85[5] 1.37 Farley US 20 01960-01-011960 01968-01-011968 Former section of US 20
Iowa 419 1.038 1.670 Victor US 6 / Iowa 21 near Victor 01962-01-011962 02003-01-012003 Spur route
Iowa 420 2.37[11] 3.81 Iowa 136 in Dyersville US 20 01960-01-011960 01969-01-011969 Former section of US 20
Iowa 421 3.260 5.246 — — 02000-01-012000 02003-01-012003 Former section of US 61 northeast of Muscatine
Iowa 422 0.52[18] 0.84 US 169 near Burt Burt 01964-01-011964 01976-01-011976 Spur route; renumbered Iowa 969
Iowa 424 0.44 0.71 Iowa 111 in Britt US 18 near Britt 01961-01-011961 01980-01-011980 Spur route
Iowa 424 2.802 4.509 South of Swedesburg US 218 near Olds 01999-01-011999 02003-01-012003 Former section of US 218
Iowa 426 0.52 0.84 Iowa 92 near Rose Hill Rose Hill 01960-01-011960 01980-01-011980 Former section of Iowa 92
Iowa 428 1.21 1.95 Anamosa US 151 near Anamosa 01965-01-011965 01980-01-011980 Spur route
Iowa 428 6.140 9.881 Maquoketa Caves State Park US 61 near Maquoketa 01980-01-011980 02003-01-012003 Park access road
Iowa 431 3.183[25] 5.123 US 218 near Waverly Iowa 3 in Waverly 01998-01-011998 02001-01-012001 Section of US 218 Business in Waverly
Iowa 431 1.920[32] 3.090 US 30 near Le Grand 02004-01-012004 02014-01-012014 Former section of US 30
Iowa 432 1.9 3.1 Iowa 163 in Oskaloosa Iowa 92 in Oskaloosa 01998-01-011998 02003-01-012003 Former section of Iowa 163
Iowa 434 8.993[27] 14.473 US 34 in Danville US 34 in West Burlington 02005-01-012005 02008-01-012008 Former section of US 34
Iowa 437 0.299[33] 0.481 Dead end near Iowa 137 in Eddyville Dead end near Iowa 342 in Eddyville 02005-01-012005 02008-01-012008 Former section of Iowa 137; abandoned road
Iowa 438 1.052 1.693 US 34 / Iowa 163 at Mount Pleasant US 218 / Iowa 27 at Mount Pleasant 02003-01-012003 current Section of US 218 Business in Mount Pleasant
Iowa 450 0.268 0.431 Iowa 10 at Alton Iowa 60 at Alton 02005-01-012005 current 450th Street
Iowa 460 7.240[27] 11.652 — — 02004-01-012004 02007-01-012007 Former sections of US 218 and Iowa 394 in Donnellson and Argyle
Iowa 461 10.750 17.300 I-280 / US 61 at Davenport I-80 / US 61 at Davenport 02010-01-012010 current US 61 Business in Davenport
Iowa 463 2.3 3.7 US 63 near Frederika US 63 near Frederika 02009-01-012009 02010-01-012010 Former section of US 63
Iowa 470 0.695 1.118 US 75 in Merrill 02011-01-012011 current Former section of US 75
Iowa 471 11.160 17.960 Iowa 175 near Lake View US 20 / US 71 near Early 02015-01-012015 current Formerly US 71 in Sac County
Iowa 475 31.79[34] 51.16 Business US 75 in Sioux City Iowa 175 in Onawa 01969-01-011969 01976-01-011976 Former section of US 75; renumbered Iowa 970
Iowa 478 0.755 1.215 Iowa 24 in New Hampton North of New Hampton 02002-01-012002 02003-01-012003 Former section of US 63
Iowa 903 0.13 0.21 Just south of Iowa 163 near Leighton 02011-01-012011 current Former section of Iowa 163
Iowa 904 4.737 7.623 US 34 / Iowa 163 west of Fairfield US 34 / Iowa 163 east of Fairfield 02008-01-012008 02011-01-012011 US 34 Business at Fairfield, did not count mileage within Fairfield city limits
Iowa 906 4.009 6.452 Iowa 192 in Council Bluffs I-80 / US 6 near Council Bluffs 02016-01-012016 02023-01-012023 Formerly US 6 through Council Bluffs
Iowa 912 0.22[29] 0.35 — — 01997-01-011997 01999-01-011999 Former section of Iowa 141
Iowa 913 1.686[9] 2.713 — — 01996-01-011996 01997-01-011997 Former section of US 61
Iowa 914 1.01[25] 1.63 Storm Lake city limit boundary Iowa 7 in Storm Lake 01996-01-011996 02001-01-012001 Former section of US 71
Iowa 915 .27[17] 0.43 Iowa 3 / Iowa 150 in Oelwein Iowa 3 / Iowa 150 in Oelwein 01986-01-011986 01990-01-011990 Former section of Iowa 3/Iowa 150 concurrency
Iowa 915 3.7[35] 6.0 — — 01993-01-011993 01994-01-011994 Former section of Iowa 415 in Ankeny
Iowa 915 .580[9] 0.933 Iowa 5 in Albia Iowa 5 in Albia 01995-01-011995 01997-01-011997 Former section of Iowa 5
Iowa 916 1.293 2.081 Iowa 281 in Oelwein Oelwein city limits 01986-01-011986 02003-01-012003 Originally ended at Iowa 915 in Oelwein; former section of Iowa 150
Iowa 917 0.149 0.240 US 61 and Iowa 22 near Muscatine Muscatine city limits 01986-01-011986 02003-01-012003 Former section of Iowa 22
Iowa 918 1.119 1.801 Iowa 16 near Eldon Iowa 16 in Eldon 01984-01-011984 02003-01-012003 Former section of Iowa 16; street signs said "Hwy 918"
Iowa 919 0.39[36] 0.63 Iowa 363 in Urbana Walnut Street in Urbana 01984-01-011984 01995-01-011995 Former section of Iowa 363; now Ash Street and Wood Street
Iowa 920 12.560 20.213 Center Point Iowa 150 near Urbana 01984-01-011984 02003-01-012003 Former section of Iowa 150
Iowa 921 11.75[12] 18.91 Iowa 920 in Center Point Hiawatha 01984-01-011984 01985-01-011985 Former section of Iowa 150
Iowa 921 2.505 4.031 US 6 / Iowa 1 in Iowa City US 218 in Iowa City 01985-01-011985 02003-01-012003 Former section of US 218
Iowa 922 1.27[12] 2.04 US 61 in Muscatine Iowa 22 in Muscatine 01984-01-011984 01986-01-011986 Former section of US 61; became part of an extended Iowa 38
Iowa 922 1.12 1.80 Iowa 149 in North English unnamed street in North English 01987-01-011987 01988-01-011988 Former section of Iowa 149
Iowa 922 8.862 14.262 US 151 at Cedar Rapids Iowa 100 in Cedar Rapids 01989-01-011989 current US 151 Business in Cedar Rapids
Iowa 923 8.819 14.193 — — 01982-01-011982 02003-01-012003 Former section of US 218; had three sections
Iowa 924 4.00[15] 6.44 Iowa 175 near Farnhamville Webster–Greene County Line 01980-01-011980 01982-01-011982 Now County Road P29
Iowa 924 2.24[26] 3.60 US 52 in Dubuque Dead end in Dubuque 01983-01-011983 01992-01-011992 Former section of US 61/US 151 concurrency
Iowa 924 0.665 1.070 US 61 near Montrose Dead end in Montrose 01994-01-011994 02003-01-012003 Formerly Iowa 998; former section of US 61
Iowa 925 26.259 42.260 I-80 / US 6 in Adair US 6 near Dexter 01980-01-011980 02003-01-012003 Former section of US 6
Iowa 926 3.18[20] 5.12 US 6 Altoona east city limit boundary 01980-01-011980 01988-01-011988 Former section of US 6; originally continued east to Newton
Iowa 926 3.147 5.065 US 169 / US 20 Bus at Fort Dodge US 169 at Fort Dodge 01990-01-011990 02014-01-012014
Iowa 927 19.017 30.605 US 6 / Iowa 38 in Wilton I-280 / US 6 near Davenport 01980-01-011980 02003-01-012003 Former section of US 6; was signed in 1989
Iowa 928 20.168 32.457 Iowa 17 near Webster City CR D20 near Williams 01980-01-011980 02003-01-012003 Former section of US 20
Iowa 929 0.789 1.270 Murray city limits Maple Street in Murray 01980-01-011980 02003-01-012003 Former section of Iowa 152
Iowa 930 1.738 2.797 US 30 near Ames Boone–Story county line 01972-01-011972 current Former section of US 30
Iowa 931 1.2 1.9 Iowa 13 in Coggon Iowa 13 near Coggon 01976-01-011976 01978-01-011978 Former section of Iowa 13
Iowa 931 8.962 14.423 I-35 in Ankeny US 65 in Polk County 01980-01-011980 02003-01-012003
Iowa 932 0.193 0.311 Ryan city limits Iowa 13 in Ryan 01976-01-011976 02003-01-012003 Former section of Iowa 13
Iowa 933 0.74[14] 1.19 Iowa 141 in Perry Iowa 141 in Perry 01976-01-011976 01984-01-011984 Former section of Iowa 141
Iowa 933 0.21[29] 0.34 — — 01985-01-011985 01999-01-011999 Former section of Iowa 58 just south of US 20
Iowa 934 1.07[7] 1.72 US 61 near Burlington US 61 near Burlington 01976-01-011976 01980-01-011980 Former section of US 61; now Memorial Park Road
Iowa 934 1.14[17] 1.83 Dallas–Polk county line I-35 in Des Moines 01981-01-011981 01989-01-011989 Former section of Iowa 90
Iowa 934 4.76[26] 7.66 US 20 near Moorland US 169 in Fort Dodge 01990-01-011990 01991-01-011991 Former section of US 20
Iowa 934 0.19[37] 0.31 — — 01992-01-011992 01994-01-011994 Former section of US 34 just east of Iowa 97, which is now County Road S56
Iowa 934 4.881 7.855 Iowa 58 in Cedar Falls US 63 in Waterloo 01998-01-011998 02016-01-012016 Was an unsigned highway
Iowa 935 0.77[15] 1.24 — — 01976-01-011976 01981-01-011981 Former section of US 34 parallel to Business US 34 in Burlington
Iowa 935 1.492 2.401 I-29 Mills–Pottawattamie county line 01982-01-011982 02003-01-012003 Former section of Iowa 370
Iowa 936 0.087[36] 0.140 east city limits of West Burlington west city limits of Burlington 01976-01-011976 01995-01-011995 Former section of Iowa 406
Iowa 936 0.275 0.443 Iowa 92 near Ainsworth Iowa 923 near Ainsworth 01997-01-011997 02003-01-012003 Former section of Iowa 92
Iowa 937 4.23[24] 6.81 Iowa 2 near Bloomfield Iowa 2 near Bloomfield 01976-01-011976 01977-01-011977 Former section of Iowa 2
Iowa 937 0.460 0.740 Iowa 141 near Perry US 169 near Perry 01977-01-011977 02003-01-012003 Former section of Iowa 141
Iowa 938 1.57[7] 2.53 Iowa 947 near Manchester Manchester Fish Hatchery 01976-01-011976 01980-01-011980 Former Iowa 116
Iowa 938 0.460 0.740 Union Street in Unionville Unionville south city limit boundary 01980-01-011980 02003-01-012003 Former section of Iowa 369
Iowa 939 6.76[7] 10.88 US 65 Iowa 2 near Corydon 01976-01-011976 01980-01-011980 Former section of Iowa 2
Iowa 939 18.931 30.466 Iowa 187 near Masonville Black Hawk–Buchanan county line 01980-01-011980 02003-01-012003 Former section of US 20
Iowa 940 2.51[7] 4.04 — — 01976-01-011976 01980-01-011980 Former sections of Iowa 2 at County Road S70, County Road T14, and in Centerville
Iowa 940 0.081 0.130 Tama–Benton county line near Belle Plaine Iowa 21 near Belle Plaine 01981-01-011981 02003-01-012003
Iowa 941 2.99[7] 4.81 County Road J18 in Moravia Iowa 5 near Moravia 01976-01-011976 01980-01-011980 Former section of Iowa 5
Iowa 941 6.38[12] 10.27 US 30 / US 218 in Cedar Rapids US 30 / US 218 in Cedar Rapids 01981-01-011981 01987-01-011987 Former section of US 30/US 218 concurrency
Iowa 941 1.12[17] 1.80 5th Avenue Southwest in Epworth Bierman Road in Epworth 01988-01-011988 01990-01-011990 Former section of US 20
Iowa 941 12.953 20.846 I-35 near Williams Iowa Falls city limits 01991-01-011991 02003-01-012003 Former section of US 20
Iowa 942 5.70[7] 9.17 Iowa 5 near Moravia County Road J18 in Moravia 01976-01-011976 01980-01-011980 Former section of Iowa 5; had another section south of Albia
Iowa 942 0.466 0.750 Vine Street in Woodburn Woodburn city limits 01980-01-011980 02003-01-012003 Former section of Iowa 104
Iowa 943 0.69[7] 1.11 — — 01974-01-011974 01980-01-011980 Former section of Iowa 13 in Central City
Iowa 943 0.43[20] 0.69 1st Street in Galva Galva city limits 01980-01-011980 01987-01-011987 Former section of Iowa 328
Iowa 943 0.48[17] 0.77 — — 01988-01-011988 01990-01-011990 Former Iowa 12 ramp in Sioux City; road destroyed 1990s
Iowa 943 1.82[36] 2.93 US 63 in Denver US 63 in Denver 01994-01-011994 01995-01-011995 Former section of US 63
Iowa 944 0.99[7] 1.59 Iowa 13 in Manchester Iowa 13 in Manchester 01976-01-011976 01980-01-011980 Former section of Iowa 13
Iowa 944 0.553 0.890 US 61 / Iowa 2 in Fort Madison Fort Madison city limits 01980-01-011980 02003-01-012003 Former section of Iowa 88
Iowa 945 4.599 7.401 I-80 near Altoona Iowa 931 in Polk County 01980-01-011980 02003-01-012003
Iowa 946 2.72[7] 4.38 Luana city limits US 18 / US 52 in Monona 01976-01-011976 01980-01-011980 Former section of US 18/US 52 concurrency; had two sections separated by the city limits of Monona
Iowa 946 0.07[17] 0.11 US 218 in St. Ansgar Park Street in St. Ansgar 01988-01-011988 01989-01-011989 Former section of US 218
Iowa 946 0.927 1.492 US 52 / US 61 / US 151 in Dubuque US 52 / US 61 / US 151 in Dubuque 01991-01-011991 current Provides direct access between US 20 and US 52 / US 61 / US 151
Iowa 947 23.75[7] 38.22 Iowa 187 Dyersville city limits 01976-01-011976 01981-01-011981 Former section of US 20
Iowa 947 0.45[12] 0.72 Zearing city limits Pearl Street in Zearing 01981-01-011981 01986-01-011986 Former section of Iowa 317
Iowa 947 4.74[12] 7.63 Iowa 57 in Cedar Falls Greenhill Road in Waterloo 01989-01-011989 01992-01-011992 Former section of US 218
Iowa 947 2.47[9] 3.98 Iowa 70 in Columbus Junction Market Street in Columbus City 01994-01-011994 02003-01-012003 Former section of Iowa 70; only the 0.671 miles in Columbus City were left on December 1, 1997
Iowa 948 5.08[20] 8.18 DeWitt city limits US 30 near DeWitt 01975-01-011975 01987-01-011987 Former section of US 30
Iowa 948 .30[37] 0.48 US 61 / US 151 in Dubuque Iowa 959 in Dubuque 01992-01-011992 01993-01-011993 Former section of US 61/US 151 concurrency
Iowa 949 2.275 3.661 Glenwood city limits US 34 / US 275 near Glenwood 01974-01-011974 02003-02-182003 Formerly US 34 Business
Iowa 950 3.45[37] 5.55 US 6 / US 65 in Altoona iowa 163 in Pleasant Hill 01980-01-011980 01994-01-011994 Now 34th Avenue/56th Street
Iowa 951 2.65[7] 4.26 US 34 west of Osceola US 34 near Osceola 01976-01-011976 01980-01-011980 Former section of US 34
Iowa 951 3.15[37] 5.07 Carbon city limits Iowa 148 01983-01-011983 01993-01-011993 Former Section of Iowa 95
Iowa 952 1.8 2.9 US 61 in Burlington Central avenue in Burlington 01976-01-011976 01976-01-011976 Former section of US 34
Iowa 952 0.18[14] 0.29 — — 01978-01-011978 01982-01-011982 Former section of US 67 north of Clinton
Iowa 952 0.112 0.180 US 151 near Cascade Reiter Road near Cascade 01992-01-011992 02003-01-012003 Former section of US 151
Iowa 953 0.89[7] 1.43 Iowa 38 near Muscatine Iowa 38 in Muscatine 01976-01-011976 01980-01-011980 Former section of Iowa 38
Iowa 953 0.08[37] 0.13 Iowa 149 in North English Dead end in North English 01988-01-011988 01994-01-011994 Former section of Iowa 149
Iowa 953 1.0[37] 1.6 Iowa 5 in West Des Moines Browns Woods Road in West Des Moines 01995-01-011995 01996-01-011996 Former section of Iowa 28
Iowa 954 0.773 1.244 US 61 near Maquoketa Maquoketa city limits 01967-01-011967 02003-01-012003 Former section of US 61; numbered 1976
Iowa 955 0.727 1.170 US 61 near Key West Iowa 963 (Military Road) in Key West 01971-01-011971 02003-01-012003 Former section of US 61
Iowa 956 16.776 26.998 CR F55 at Davenport US 61 north of DeWitt 01976-01-011976 02003-01-012003 Former section of US 61
Iowa 957 3.33[24] 5.36 US 63 near Bloomfield US 63 near Bloomfield 01976-01-011976 01977-01-011977 Former section of US 63
Iowa 957 0.062 0.100 — — 01988-01-011988 02003-01-012003 Former section of Iowa 22
Iowa 958 1.610 2.591 Ottumwa city limits US 63 south of Ottumwa 01965-01-011965 02003-01-012003 Former section of US 63
Iowa 959 1.27[7] 2.04 US 65 / US 69 in Des Moines Des Moines city limits 01970-01-011970 01981-01-011981 Former section of US 65/US 69 concurrency
Iowa 959 1.29[37] 2.08 US 61 / US 151 in Dubuque US 61 / US 151 & US 52 in Dubuque 01992-01-011992 01993-01-011993 Former section of US 61/US 151 concurrency
Iowa 960 1.58[7] 2.54 Clarinda city limits Iowa 2 near Clarinda 01973-01-011973 01982-01-011982 Former section of Iowa 2
Iowa 960 1.11[12] 1.79 — — 01982-01-011982 01986-01-011986 Former section of US 61
Iowa 960 4.7 7.6 — — 01993-01-011993 01994-01-011994 Former section of US 61/US 218 concurrency north of Keokuk
Iowa 960 1.016 1.635 US 75 Business/Iowa 404 in Le Mars Dead end in Le Mars 02006-01-012006 02007-01-012007 Former section of Iowa 60
Iowa 961 0.56[7] 0.90 Villisca city limits US 71 near Villisca 01976-01-011976 01980-01-011980 Former section of US 71
Iowa 961 1.08[37] 1.74 US 61 / US 151 in Dubuque US 20 in Dubuque (southbound), Iowa 946 in Dubuque (northbound) 01991-01-011991 01993-01-011993 Former section of US 151 and US 61
Iowa 961 0.50[36] 0.80 — — 01994-01-011994 01996-01-011996 Former section of US 61 in Wever
Iowa 961 3.613 5.815 Iowa 2 in Fort Madison US 61 at Fort Madison 02011-01-012011 02013-01-012013 Section of US 61 Business in Fort Madison
Iowa 962 0.11[9] 0.18 US 218 near Ainsworth County Road W64 near Ainsworth 01994-01-011994 01997-01-011997 Former section of US 218
Iowa 963 4.139 6.661 US 151 near Key West US 61 / US 151 in Dubuque 01971-01-011971 02003-01-012003 Former section of US 151 and US 61
Iowa 964 4.704[9] 7.570 Iowa 92 near Knoxville Iowa 92 near Knoxville 01977-01-011977 01996-01-011996 Former section of Iowa 92
Iowa 965 3.29[7] 5.29 — — 01976-01-011976 01980-01-011980 Former section of US 52
Iowa 965 0.519 0.835 US 6 in Coralville I-80 in Coralville 01985-01-011985 current Former section of US 218; extended to Cedar Rapids until 2003
Iowa 966 4.89 7.87 Centralia US 20 01976-01-011976 01996-01-011996 Former Iowa 416, and before that, was a section of US 20
Iowa 967 0.037 0.060 US 20 near Farley Farley city limits 01976-01-011976 02003-01-012003 Former Iowa 418, and before that, was a section of US 20
Iowa 968 2.37[17] 3.81 Iowa 136 in Dyersville US 20 01976-01-011976 01989-01-011989 Former Iowa 420, and before that, was a section of US 20
Iowa 968 5.36[36] 8.63 Iowa 163 in Pella Iowa 163 in Pella 01993-01-011993 01994-01-011994 Former section of Iowa 163
Iowa 969 0.52[7] 0.84 US 169 near Burt Burt 01976-01-011976 01980-01-011980 Spur route; former Iowa 422
Iowa 969 4.0 6.4 US 218 near Janesville US 218 near Janesville 01993-01-011993 01994-01-011994 Former section of US 218
Iowa 970 31.79[7] 51.16 Business US 75 in Sioux City Iowa 175 in Onawa 01976-01-011976 02003-01-012003 Former section of US 75
Iowa 971 10.78[7] 17.35 Iowa 2 US 59 in Shenandoah 01975-01-011975 01979-01-011979 Former section of Iowa 2
Iowa 971 1.802[25] 2.900 US 69 in Lake Mills Winnebago–Worth county line 01993-01-011993 02003-01-012003 Former section of Iowa 105; only 0.777 miles in Lake Mills were left in 2002
Iowa 972 2.00 3.22 US 218 Mount Pleasant city limits 01969-01-011969 01974-01-011974 Former section of US 218; renumbered Iowa 976 to avoid confusion with the other Iowa 972
Iowa 972 2.772 4.461 I-29 / US 34 near Glenwood Iowa 385 near Pacific Junction 01974-01-011974 01974-01-011974 Former section of US 34; renumbered Iowa 978 to avoid confusion with the other Iowa 972
Iowa 972 10.17[7] 16.37 Iowa 92 / US 169 in Winterset US 169 01974-01-011974 01980-01-011980 Former section of US 169
Iowa 972 1.877 3.021 Northwood city limits Northwood city limits 01993-01-011993 02003-01-012003 Former section of Iowa 105
Iowa 973 1.95[13] 3.14 I-29 in Council Bluffs US 6 in Council Bluffs 01969-01-011969 01971-01-011971 Former section of US 75
Iowa 973 10.32[22] 16.61 US 71 near Atlantic Iowa 148 in Anita 01972-01-011972 01973-01-011973 Former section of US 6; became part of an extended Iowa 83
Iowa 973 1.49[7] 2.40 Iowa 92 in Winterset Iowa 972 in Winterset 01976-01-011976 01980-01-011980 Former section of Iowa 92
Iowa 973 0.65 1.05 St. Ansgar city limits US 218 in St. Ansgar 01993-01-011993 02001-01-012001 Former section of Iowa 105
Iowa 974 5.09[7] 8.19 O'Connor Road northwest of Mount Vernon Mount Vernon city limits 01965-01-011965 01980-01-011980 Former section of Iowa 150
Iowa 975 1.33[18] 2.14 North city limits of Marengo CR F15 north of Marengo 01964-01-011964 01974-01-011974 Former section of Iowa 411
Iowa 975 1.55[12] 2.49 Iowa 964 in Knoxville Iowa 5 / Iowa 92 in Knoxville 01978-01-011978 01986-01-011986 Former section of Iowa 5/Iowa 92 concurrency
Iowa 975 0.13 0.21 — — 01995-01-011995 01995-01-011995 Former section of US 275/Iowa 333 concurrency east of Hamburg
Iowa 976 2.00[18] 3.22 US 218 Mount Pleasant city limits 01974-01-011974 01980-01-011980 Former section of US 218; formerly Iowa 972
Iowa 976 0.22 0.35 Marshalltown city limits Governor Road east of Marshalltown 01996-01-011996 01997-01-011997 Former section of US 30
Iowa 976 0.879 1.415 — — 01997-01-011997 02003-01-012003 Former section of US 30
Iowa 977 2.007 3.230 US 59 in Cherokee Iowa 3 near Cherokee 01962-01-011962 02003-01-012003 Former section of Iowa 3
Iowa 978 2.77[19] 4.46 Iowa 44 in Whittemore Iowa 358 in Whittemore 01962-01-011962 01965-01-011965 Former section of Iowa 358
Iowa 978 2.772 4.461 I-29 / US 34 near Glenwood Iowa 385 near Pacific Junction 01974-01-011974 02003-02-182003 Former section of US 34; formerly Iowa 972
Iowa 979 19.80[13] 31.87 Iowa City limits Iowa 38 01961-01-011961 02003-01-012003 Former section of Iowa 1
Iowa 980 0.77[7] 1.24 US 34 near Ottumwa Ottumwa city limits 01967-01-011967 01980-01-011980 Former section of US 34; formerly US 34 Alternate
Iowa 981 0.44[7] 0.71 Iowa 150 near Fayette Fayette city limits 01967-01-011967 01980-01-011980 Former section of Iowa 150; formerly Iowa 991
Iowa 981 0.2 0.32 US 34 (later Iowa 340) in Batavia US 34 (later Iowa 340) in Batavia 01995-01-011995 01996-01-011996 Former section of US 34
Iowa 982 0.30[19] 0.48 Dubuque–Jones County Line Iowa 136 near Cascade 01961-01-011961 01965-01-011965 Former section of Iowa 136
Iowa 982 27.787 44.719 Smithland city limits Sioux City city limits 01967-01-011967 02003-01-012003 Former section of Iowa 141; formerly Iowa 994
Iowa 983 0.99[19] 1.59 Iowa 989 US 34 / Iowa 213 01961-01-011961 01964-01-011964 Former section of Iowa 213
Iowa 983 0.81[7] 1.30 US 34 west of Chariton US 34 east of Chariton 01967-01-011967 01980-01-011980 Former section of US 34; formerly Iowa 995 and Iowa 996; had a gap through Chariton
Iowa 983 0.2 0.32 Market Street in Carlisle Dead end in Carlisle 01998-01-011998 01998-01-011998 Former section of Iowa 5
Iowa 984 2.24[15] 3.60 Bettendorf city limits US 67 in Le Claire 01968-01-011968 01982-01-011982 Former section of Iowa 417
Iowa 985 1.00[19] 1.61 US 63 north of Oskaloosa US 63 north of Oskaloosa 01961-01-011961 01965-01-011965 Former section of US 63; decommissioned by 1965
Iowa 985 7.66[22] 12.33 Sioux City limits I-29 in Sioux City 01969-01-011969 01973-01-011973 Former section of Iowa 7
Iowa 985 1.927 3.101 US 52 near Bellevue State Park US 52 near Bellevue 01980-01-011980 02003-01-012003 Park access road; former section of US 52
Iowa 986 4.86[12] 7.82 Harrison–Monona county line Iowa 301 in River Sioux 01968-01-011968 01986-01-011986 Former section of US 75
Iowa 987 4.45[19] 7.16 US 63 / Iowa 412 in Waterloo Hudson city limits 01961-01-011961 01964-01-011964 Former section of US 63
Iowa 988 0.16[19] 0.26 Iowa 58 near Hudson Hudson city limits 01961-01-011961 01964-01-011964 Former section of US 63
Iowa 988 2.312 3.721 I-29 / I-680 near Crescent Iowa 183 in Crescent 01975-01-011975 02003-01-012003
Iowa 989 17.76[19] 28.58 Albia city limits US 34 near Ottumwa 01961-01-011961 01964-01-011964 Former section of US 34
Iowa 990 0.27[19] 0.43 Iowa 150 near Fayette Fayette city limits 01961-01-011961 01965-01-011965 Former section of Iowa 150
Iowa 991 0.44[5] 0.71 Fayette city limits Iowa 150 near Fayette 01961-01-011961 01967-01-011967 Former section of Iowa 150; renumbered Iowa 981
Iowa 992 8.81[19] 14.18 Wesley city limits Britt city limits 01961-01-011961 01965-01-011965 Former section of US 18
Iowa 993 3.52[19] 5.66 US 18 near Wesley Wesley city limits 01961-01-011961 01965-01-011965 Former section of US 18
Iowa 994 27.787[5] 44.719 Smithland city limits Sioux City city limits 01961-01-011961 01967-01-011967 Former section of Iowa 141; renumbered Iowa 982
Iowa 995 0.56[5] 0.90 US 34 west of Chariton Chariton city limits 01961-01-011961 01967-01-011967 Former section of US 34; renumbered Iowa 983
Iowa 996 0.23[18] 0.37 Chariton city limits US 34 east of Chariton 01961-01-011961 01976-01-011976 Former section of US 34; became a second section of Iowa 983
Iowa 997 0.89[11] 1.43 US 169 / Iowa 5 near Fort Dodge Fort Dodge city limits 01961-01-011961 01970-01-011970 Former section of Iowa 5 (now Iowa 7)
Iowa 998 0.67[37] 1.08 US 61 near Montrose Dead end in Montrose 01961-01-011961 01994-01-011994 Former section of US 61; renumbered Iowa 924
Iowa 999 2.22[7] 3.57 Spruce Street in College Springs Iowa 333 near College Springs 01961-01-011961 01980-01-011980 Former section of Iowa 333
  •       Former

References

  1. ^ 2012 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2012. Retrieved November 6, 2013.
  2. ^ 2002 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2002. Retrieved September 3, 2019.
  3. ^ a b c d e f g h "U.S. Road Markers Soon to Replace Familiar Primary Road Signs on U.S. System in Iowa". Service Bulletin Oct–Nov–Dec 1925. Iowa State Highway Commission. XIII (10–11–12): 3. 1925.
  4. ^ a b c d e f g h i j k l m 1938 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. September 26, 1938. Retrieved September 13, 2019.
  5. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj 1965 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. June 1966. Retrieved September 13, 2019.
  6. ^ a b c d e f g h i j 1956 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. May 1957. Retrieved September 14, 2019.
  7. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac 1978 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. December 31, 1978. Retrieved September 13, 2019.
  8. ^ a b c d e f g h i 1941 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. April 30, 1942. Retrieved September 14, 2019.
  9. ^ a b c d e f g h 1996 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. August 1997. Retrieved September 3, 2019.
  10. ^ a b c d e f g h i j k 1934 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. March 25, 1935. Retrieved September 13, 2019.
  11. ^ a b c d e f g h 1968 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. March 1970. Retrieved September 13, 2019.
  12. ^ a b c d e f g h i j k l m 1984 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. August 1985. Retrieved September 3, 2019.
  13. ^ a b c d e f g h i j 1970 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. July 1971. Retrieved September 13, 2019.
  14. ^ a b c d 1982 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. December 31, 1982. Retrieved September 3, 2019.
  15. ^ a b c d e f g h i 1980 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. December 31, 1980. Retrieved September 13, 2019.
  16. ^ a b c d e f g h i j k l m 1959 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. June 1960. Retrieved September 14, 2019.
  17. ^ a b c d e f g h i j k l m n o p 1988 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 1988. Retrieved September 3, 2019.
  18. ^ a b c d e f g h 1974 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. May 1, 1976. Retrieved September 13, 2019.
  19. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa 1962 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. May 1963. Retrieved September 13, 2019.
  20. ^ a b c d e f 1986 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. 1987. Retrieved September 3, 2019.
  21. ^ a b c d 1953 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. August 1954. Retrieved September 14, 2019.
  22. ^ a b c d e f g 1972 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. April 1973. Retrieved September 13, 2019.
  23. ^ a b 1951 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. January 1, 1951. Retrieved September 14, 2019.
  24. ^ a b c d 1976 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. December 31, 1976. Retrieved September 12, 2019.
  25. ^ a b c d e f g h i 2000 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. August 2001. Retrieved September 3, 2019.
  26. ^ a b c d 1990 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. 1991. Retrieved September 3, 2019.
  27. ^ a b c d 2006 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2006. Retrieved September 3, 2019.
  28. ^ 2003 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2003. Retrieved September 3, 2019.
  29. ^ a b c d 1998 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. 1999. Retrieved September 3, 2019.
  30. ^ "Primary Route Descriptions – Unsigned Iowa 374 in Jasper County". Iowa Department of Transportation. Retrieved September 3, 2019.
  31. ^ 1949 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. January 1951. Retrieved September 14, 2019.
  32. ^ 2004 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2004. Retrieved September 3, 2019.
  33. ^ 2008 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2008. Retrieved September 3, 2019.
  34. ^ "Primary Route Descriptions – Iowa 475 in Monona County". Iowa Department of Transportation. Retrieved September 3, 2019.
  35. ^ https://iowadot.gov/analytics/PrimaryRteDescrips/Polk/IA%20915%20(unsigned).htm. {{cite web}}: Missing or empty |title= (help)
  36. ^ a b c d e 1994 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. August 1995. Retrieved September 3, 2019.
  37. ^ a b c d e f g h i 1992 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. 1993. Retrieved September 7, 2019.
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