The 28th Senate District of Wisconsin is one of 33 districts in the Wisconsin State Senate. Located in southeast Wisconsin, the district comprises southwest Milwaukee County, southern Waukesha County, northwest Racine County, and northeast Walworth County. It includes all of the city of Muskego, as well as most of the cities of Greenfield and Franklin, and the villages of East Troy, Eagle, Greendale, Hales Corners, Mukwonago, and Waterford.