US midterms 2026: Did redistricting change your Congressional district? How to check your new boundaries

US midterms 2026: Election Day is November 3, and millions of Americans will vote in a House district that looks different from the one they used two years ago. A rare mid-decade redistricting fight began in July 2025, when President Donald Trump urged Republican-led states to redraw their maps. Districts are normally redrawn only once a decade, after the census. The AP estimates that about one in ten potential voters are now in a different district than in 2024.

US midterms 2026: Nine states vote on new lines

Alabama, California, Florida, Louisiana, North Carolina, Ohio, Tennessee, Texas and Utah are using new districts this year. Most favor Republicans, with California and Utah the exceptions. If every map works as drawn, Republicans could pick up as many as nine seats. A strong Democratic year could cut into that.

Texas moved first. California Democrats answered with Proposition 50, which voters approved in November 2025.


Florida’s new map is expected to widen the Republican edge from 20-8 to 24-4. The state Supreme Court declined to block it, so it stands for this election while the lawsuit continues.

Three Southern states acted after the U.S. Supreme Court weakened Voting Rights Act protections in April. Alabama was cleared to use a 2023 map that a federal court had earlier barred.

Tennessee split its only majority-Black district, in Memphis, and Louisiana removed one of its two. Utah went the other way.

A judge there approved a map with a solidly Democratic seat based in Salt Lake City.

Missouri produced the most whiplash. Lawmakers passed a new map last September, and it was used in the August primary. Then the state Supreme Court ruled that a citizen petition meant the map could not be used again unless voters approved it.

The U.S. Supreme Court refused for a third time to intervene, so Missouri will vote under the same districts it used in 2024 and 2022.

The justices noted that voting was already underway on ballots printed under the old map, and warned that switching now would cause serious disruption. That means a Missourian who voted in the August primary may see a different district on the November ballot. A referendum on the new map also appears on that ballot.

Virginia Democrats tried the same game. Voters approved their redraw in April, but the state Supreme Court struck it down 4-3. The earlier map stays.

How to confirm your district

Start with your state or county election website and find its voter lookup. Enter your full address and it should show a sample ballot, including the House race you will actually vote in. Some counties have already updated their tools.

San Bernardino County, California, says its lookup now reflects the Proposition 50 boundaries. That same page sends people to the House website only to find their current representative.

Next, try “Find Your Representative” on house.gov, and use your full street address. A ZIP code alone can cover more than one district. Then check vote.gov to confirm your registration.

Finally, compare the names on your sample ballot with the ones you voted on in 2024. New names usually mean new lines.

These maps are locked in for November, but they may not last. Ballot measures in Maryland and Missouri could lead to new districts before the next presidential election.