Winnebago County & Municipal Redistricting

The redistricting process begins when the County receives the Federal Decennial Census numbers from the State. Once the data is received, a rigid three-stage process starts. Starting with the county developing a supervisory district plan. After which the municipalities develop ward and aldermanic district plans. Lastly, the county adopts the final supervisory district plan.

This year due to the pandemic, the timeline to begin the redistricting process at the county level has been reduced from the normal 180 days to about 80 days. This is due to the delay in receiving Census data from the Federal Government. We received Census data from the Legislative Technology Services Bureau (LTSB) on August 16th. In addition, on July 9, 2021 the Governor vetoed Assembly Bill 369, which would have allowed local redistricting to be completed in the normal length of time.

Winnebago County has developed a proposed compressed redistricting timeline to be ready for the 2022 spring election. To meet the proposed timeline special meetings may be necessary for municipalities and the county. With the Cities of Appleton and Menasha being in multiple counties Winnebago, Calumet, and Outagamie Counties are coordinating our timelines to ensure municipalities can complete their work.

Local Redistricting Overview

Winnebago County & Municipal Redistricting Timeline

Winnebago County and Municipal Redistricting Timeline

Click on the image above to open the pdf.

Current Status: STAGE 2

- Census data has been received.

- The Winnebago County Board provided direction to the Planning Department to begin work on new supervisory district maps comprised of 36 supervisors.

- The Judiciary and Public Safety Committee passed on Supervisory District Plans 1 and 3 to the County Board.

- The Winnebago County Board adopted Supervisory District Tentative Plan 1 on 9/21/2021

Last Updated 9/22/2021

Key Dates

September 13 – Judiciary & Public Safety Committee meets to review and forward Tentative Plan(s) to the County Board

September 14 – Public Hearing at a Special County Board Meeting

September 21 - County adopts tentative plan and transmits plan to municipalities

October 25 - Municipalities transmit ward plans back to Winnebago County

November 16 - Winnebago County holds Public Hearing and adopts final County Supervisory District Plan.

Review the Winnebago County Public Meetings calendar for more information about related meetings.

Adopted Tentative Supervisory District Plan

Supervisory Redistricting App

Click on the image above to open the app.

For best performance, use a desktop browser.

Review plan on desktop by clicking plan at the left side or on mobile cycle through the options at the bottom.

Desktop Navigation: Click and drag to pan. Use the mouse scroll wheel or +/- buttons to zoom.

Mobile Navigation: Drag to pan and pinch open or closed to zoom.

Adopted Tentative Supervisory District Plan PDF Maps

In person at the Winnebago County Clerk's office.

Current Supervisory District Plan

Plan Adopted by Winnebago County Board Sept. 6, 2011

Countywide Supervisory District Map

Individual Supervisory District Maps

Population Changes Between 2010 and 2020

Winnebago County 2010-2020 Population Change Fact Sheet

2010 - 2020 Percent Change in Population by Supervisory District Map

2010 - 2020 Change in Supervisory District Population

Frequently Asked Questions

When can the County Board size change?

The County Board can vote to change its size as part of the local redistricting during the year after the decennial census.  This happens in years ending in 1 (i.e. 2001, 2011, 2021) (59.10 (3)(b)).

During the 10 years between the decennial census the board size can be decreased once.  This can be done either through County Board action or by referendum (Wis. Stat. 59.10 (3)(cm)).

How has the population of Winnebago County changed between 2010 and 2020?

Please refer to the Winnebago County 2010-2020 Population Change Fact Sheet.

How are the Supervisory District Plans created?

Small geographic areas called Census Blocks are grouped together to create Supervisory Districts.  These districts must be compact, contiguous, equal in population, protect minorities, preserve communities of interest and preserve the unity of political subdivisions.  This work is done within the software program created by the Wisconsin Legislative Technology Services Bureau called WISE-LR (Wisconsin Shape Editor for Local Redistricting).  For more detail about the Supervisory District Plan creation process please refer to the Redistricting In Wisconsin 2020 The LRB Guidebook.

What resources are available for Municipalities during the redistricting process?

The LTSB Local Redistricting Webpage contains many helpful resources. Below are the highlights specific to municipalities.

2021 Local Redistricting Presentation - (LRB) – Specifically slides 42-48

The LRB Guidebook: Redistricting in Wisconsin 2020 - Specifically pdf pages 30-36

Wisconsin Local Redistricting Panel Discussion Video – The section discussing municipal redistricting starts around 17 minutes into the video.

2021 WISE-LR Software Training for Municipalities

Local Redistricting Resources

Wisconsin Legislative Technology Services Bureau Local Redistricting Information

Wisconsin Legislative Reference Bureau Manual

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GIS Division

112 Otter Ave, 3rd Floor
PO Box 2808
Oshkosh, WI 54901
Phone:(920) 232-3340
Fax:(920) 232-3347