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Key takeaways
- Ten states have revised congressional maps since summer 2025, with additional states considering it or in litigation.
- Redistricting may change your polling place, election date or candidates on the ballot.
- Checking the location 30 days out, and voting early or by mail can help avoid voting issues.
Ensuring your vote counts gets trickier if the time, place or people you’re voting for changes. Those short-notice election shifts are likelier to happen this year because of redistricting taking place in some states.
Redistricting — the process of redrawing the lines around electoral districts to ensure each one contains roughly the same number of voters — typically happens once every decade following a census count. Recently, there has been an unusual flurry of activity that could trip up voters when it comes time to cast their ballots.
Ten states have changed their congressional maps since the summer of 2025, according to the National Conference of State Legislatures (NCSL), while several others are starting the process or considering it. If your state is one of them, that means your polling location or election dates could change, or you may be voting for a different U.S. House representative from the one you expected.
Right now, some states are modifying their congressional lines, meaning only U.S. House seats are affected. There are also electoral districts for state legislatures, county commissions and city councils.
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Katy Owens Hubler, director of elections and redistricting at the NCSL, says that she expects to see redistricting continue over the next couple of years with House races and that it could carry over to state and local races as well. In 2024, 10 states had new congressional or legislative maps in place, according to the Redistricting Data Hub, an online data source.
“The biggest thing is to stay informed,” says Owens Hubler. “People may throw up their arms and say, ‘Things are changing so quickly so I’m not going to pay attention.’ But it’s important to pay attention to deadlines and know what’s on your ballot.”
Follow these steps to avoid hiccups when casting a vote. They’re useful whether your state is experiencing redistricting or not, to make sure your vote counts.
Confirm your polling place
Districts, the geographic areas where people vote for a particular candidate, are often subdivided into smaller areas called precincts.
Justin Levitt, a law professor at Loyola Law School in Los Angeles, likens precincts to molecules or building blocks. Precincts typically have a single polling place for residents, although sometimes more than one precinct will vote in the same location. (If your city or county uses a “vote center” model, where people can choose from several locations rather than having a single designated spot, the specific location you go to doesn’t matter because you will receive an individualized ballot when you arrive.)
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