Wisconsin's 27th Senate 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.

Current elected officials
Dianne Hesselbein is the senator representing the 27th district since January 2023. She previously served ten years in the Wisconsin State Assembly, representing the 79th district.

Each Wisconsin State Senate district is composed of three Wisconsin State Assembly districts. The 27th Senate district comprises the 79th, 80th, and 81st Assembly districts. The current representatives of those districts are:
 * Assembly District 79: Alex Joers (D–Middleton)
 * Assembly District 80: Mike Bare (D–Verona)
 * Assembly District 81: Dave Considine (D–Baraboo)

The district is located entirely Wisconsin's 2nd congressional district, which is represented by U.S. Representative Mark Pocan.

Past senators
The district has previously been represented by:

Note: the boundaries of districts have changed repeatedly over history. Previous politicians of a specific numbered district have represented a completely different geographic area, due to redistricting.