List of U.S. Highways in Massachusetts

Standard U.S. Highway shields
U.S. Highways highlighted in red
System information
Notes	Routes are not always state-maintained, and not all state highways are Routes.
Highway names
Interstates	Route I-X or Route X
US Highways	Route US X or Route X
State	Route X
System links
Massachusetts State Highway System Interstate US State

The U.S. Highways in Massachusetts comprise eight current U.S. Highways and one former route.

Mainline routes

Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
US 1	85.60	137.76	US 1 at Pawtucket, RI	US 1 in Seabrook, NH	01926-01-011926	current	Mostly follows the old New England Route 1
US 3	35.70	57.45	Route 3 / Route 2A in Cambridge	US 3 in Nashua, NH	01926-01-011926	current	Mostly follows the old New England Route 6
US 5	53.46	86.04	US 5 in Enfield, CT	US 5 in Guilford, VT	01926-01-011926	current	Mostly follows the old New England Route 2
US 6	117.46	189.03	US 6 in East Providence, RI	Route 6A in Provincetown	01926-01-011926	current	Mostly follows the old New England Route 3
US 7	53.9	86.7	US 7 in North Canaan, CT	US 7 in Pownal, VT	01926-01-011926	current	Mostly follows the old New England Route 4
US 20	153.44	246.94	US 20 in New Lebanon, NY	Route 2 in Boston	01926-01-011926	current	Mostly follows the old New England Route 5
US 44	38.40	61.80	US 44 in East Providence, RI	Route 3A in Plymouth	01935-01-011935	current
US 202	79.6	128.1	US 202 in Granby, CT	US 202 in Rindge, NH	01935-01-011935	current
Former

Special routes

Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
US 5A	—	—	Suffield, CT	Springfield	01932-01-011932	01938-01-011938	Replaced by Route 5A; which became Route 159
US 6 Byp.	—	—	US 6 / Route 28 in Bourne	US 6 / Route 6A in Sagamore	—	—	signs were posted along both sides of Cape Cod Canal
Former