Wisconsin Highway 43

For the highway in Wisconsin numbered 43 since 1974, see Interstate 43.

State Trunk Highway 43
Route information
Maintained by WisDOT
Existed	1918–1974
Location
Country	United States
State	Wisconsin
Highway system
Wisconsin State Trunk Highway System Interstate US State Scenic Rustic
← I-43 → WIS 44

State Trunk Highway 43 (often called Highway 43, STH-43 or WIS 43) was a number assigned to two different state highways in the U.S. state of Wisconsin:

• Highway 43 from 1917 to 1923, assigned the WIS 27 designation in 1923
• Highway 43 from 1923 to 1974, currently routed as WIS 142 from Burlington to Kenosha