Visit the "Who Are My Legislators" website to determine who represents your area.
Discover, explore, and download the most current GIS data from the Wisconsin State Legislature.
Data Library
2020 CENSUS REDISTRICTING DATA
Wisconsin's (P.L. 94-171) Redistricting Data Summary Files can be downloaded from the U.S. Census FTP site.
The U.S. Census Bureau provided redistricting data as legacy format summary files for all states on August 12, 2021.
U.S. DOJ Summarized Fields
- U.S. DOJ Redistricting Guidelines (PDF)
- 2020 P.L. 94-171 Data Calculations based on U.S. DOJ Guidance (PDF) (XLSX)
- 2020 Wisconsin Blocks with P.L. 94-171 Redistricting Data as U.S. DOJ Summarized Fields (XLSX) (CSV)
- 2020 Wisconsin Municipalities with P.L. 94-171 Redistricting Data as U.S. DOJ Summarized Fields (XLSX) (CSV)
- 2020 Wisconsin Counties with P.L. 94-171 Redistricting Data as U.S. DOJ Summarized Fields (XLSX) (CSV)
2020 TIGER Geography & P.L. 94-171 Redistricting Data as U.S. DOJ Summarized Fields
- 2020 Wisconsin Blocks with Water (Shapefile) (fGDB)
- 2020 Wisconsin Blocks without Water (Shapefile) (fGDB)
TIGER/Line Shapefiles can be downloaded from the U.S. Census website.
- 2020 TIGER CTV Boundaries (Shapefile)
Johnson v. Wisconsin Elections Commission, Case No. 2021AP1450-OA - updated April 18, 2022
- Assembly Districts - Johnson v. WEC (Interactive Map) (Shapefile)
- Senate Districts - Johnson v. WEC (Interactive Map) (Shapefile)
- Congressional Districts - Johnson v. WEC (Interactive Map) (Shapefile)
- 2022 Wisconsin Local Redistricting Municipal Wards with Johnson v. WEC Districts (Interactive Map) (Shapefile)
- 2022 Wisconsin Local Redistricting Blocks* with Johnson v. WEC Districts (Interactive Map) (Shapefile)
- *U.S. Census TIGER 2020 Wisconsin Block geography as sub-divided by county redistricting officials
STATEWIDE REPORTS
2022 Statewide Reports
- Assembly, Senate and Congressional Districts by Zip Codes (PDF) (XLS)
- *Zip code and postal municipality data is from the U.S. Census Bureau data on August 16, 2022. Zip code data can change over time.
2010 Statewide Reports
2000 Statewide Reports
- Ward Population Totals by District (PDF)
- Districts by Municipality (PDF)
- Statewide Assembly, Senate, Congressional Districts by Zip Codes (Zip)
ELECTION DATA
Election data can be found on the LTSB Open Data Portal.
You can download each full dataset as a spreadsheet, KML file, and/or shapefile. The election data is separated into the following three decades:
- 2012-2020 Wisconsin Election Data (Direct Link)
- 2002-2010 Wisconsin Election Data (Direct Link)
- 1990-2000 Wisconsin Election Data (Direct Link)