State Trunk Highway 75 (often called Highway 75, STH 75 or WIS 75) is a 12.10-mile (19.5 km) state highway in the southeastern part of U.S. state of Wisconsin. The highway runs from Wisconsin Highway 50 and Wisconsin Highway 83 in Paddock Lake north to Wisconsin Highway 20 east of Waterford. WIS 75 serves Kenosha and Racine Counties. The highway is maintained by the Wisconsin Department of Transportation.