Where can I go to register to vote in Wisconsin, or to update my registration details, such as my current address?

The MyVote.wi.gov site has several resources to help Wisconsin voters.  If you believe you are registered to vote, you can enter in your name and birth date to verify your registration status. Voting rolls do get updated and records that are believed to be outdated do get removed, so it is helpful to verify your status before going to vote.  While current rules allow you to register at your polling site on the day of voting, you do need to have appropriate identification and proof of residence which you might not typically have on hand if you weren't expecting to need to register. You can also register to vote ahead of time through this website.  This website is provided by the Wisconsin Elections Commission, which is a bipartisan commission charged with implementing Wisconsin's election statutes.