How to register to vote in Wisconsin

By NPR staff
  •   Last revised Monday, March 23, 2026

Prior to the statewide primary in August, Wisconsin is holding elections on April 7, including for state Supreme Court. The online and mail registration deadline was March 18. Eligible voters can also register at their municipal clerk's office through 5 p.m. local time on April 3. In-person registration then resumes on April 7 at polling places.

Key links

General information Check voter registration status Register online Change registration

Deadlines for Aug. 11 primary election

Online Register by Wednesday, July 22
By mail Postmarked by Wednesday, July 22
In person Register by Tuesday, Aug. 11
Eligible voters can register at their municipal clerk's office through 5 p.m. local time on Aug. 7. In-person registration then resumes on Election Day at polling places.

Last updated March 23, 2026. Military and overseas citizen voters may have different registration deadlines.