Wisconsin's 16th Senate district


The 16th Senate district of Wisconsin is one of 33 districts in the Wisconsin Senate. Located in south-central Wisconsin, the district comprises much of eastern Dane County, western Jefferson County, and part of southwest Dodge County. It includes the cities of Fitchburg, Fort Atkinson, Lake Mills, Stoughton, Sun Prairie, and Waterloo, and the villages of Cottage Grove, Deerfield, and [Marshall, Dane County, Wisconsin|Dane County, Wisconsin|Marshall], and parts of the city of Madison and the village of McFarland. It also contains Lake Kegonsa State Park and most of Lake Koshkonong.

Current elected officials

Melissa Ratcliff is the senator representing the 16th district. She was first elected in the 2024 general election. Before serving as senator, she served in the Wisconsin State Assembly from 2023 to 2025, representing Sun Prairie and Madison's far east side.
Each Wisconsin State Senate district is composed of three Wisconsin State Assembly districts. The 16th Senate district comprises the 46th, 47th, and 48th Assembly districts. The current representatives of those districts are:
The district crosses two congressional districts. The portion of the district in Dodge and Jefferson counties fall within Wisconsin's 5th congressional district, which is represented by U.S. Representative Scott L. Fitzgerald. The remainder of the district, in Dane County, falls within Wisconsin's 2nd congressional district, represented by U.S. Representative Mark Pocan.

Past senators

Notable past senators include: