The 81st Assembly District of Wisconsin is one of 99 districts in the Wisconsin State Assembly. Located in south-central Wisconsin, the district comprises the northwest corner of Dane County, including northwestern suburban and exurban Madison. It includes the city of Middleton and the villages of Black Earth, Dane, Mazomanie, and Waunakee. The 81st district also contains two wards on the far north side of the city of Madison which include the Cherokee Park, Sherman Village, North Lake Mendota, Lerdahl Park and Whitetail Ridge neighborhoods. The district also contains Governor Nelson State Park, Mendota Mental Health Institute and Middleton Municipal Airport. The district has been represented by Democrat Dave Considine since January 2015. As of the 2024 redistricting Considine no longer lives within the 81st district.

The 27th Senate District of Wisconsin is one of 33 districts in the Wisconsin Senate. Located in south-central Wisconsin, the district comprises most of the northwest quadrant of Dane County. It includes much of the west side of the city of Madison, as well as portions of Madison's far north side. The 27th also includes the suburban cities of Middleton and Verona, and the villages of Black Earth, Cross Plains, Dane, Mazomanie, and Waunakee.