How Many House Seats Are Up for Election in 2026? All 435: the Math, the New Maps and the Races

By Dr. AtlasPublished Sep 17, 2026

All 435 voting seats in the U.S. House of Representatives are up for election on Tuesday, November 3, 2026. ^[1][2][3] No House seat ever sits out a cycle: the Constitution says the chamber “shall be composed of Members chosen every second Year by the People of the several States.” ^[1]

What sets the 2026 House elections apart is the ground they are fought on: Republicans hold 218 seats, exactly the number that makes a majority, and nine states vote on congressional maps that differ from the ones they used in 2024. ^[5][19]

Are all House seats up for election in 2026?

Yes. The House explains that “each representative is elected to a two-year term serving the people of a specific congressional district,” and federal law sets one day for all of those elections: “The Tuesday next after the 1st Monday in November, in every even numbered year.” ^[3][2] In 2026 that day is November 3. ^[10]

The number 435 comes from statute, not the Constitution, which requires only that “each State shall have at Least one Representative.” ^[1] The House says the figure was “set by Public Law 62-5 on August 8, 1911, and in effect since 1913.” ^[3] Five delegates and Puerto Rico’s resident commissioner also sit in the House, but “they may not vote when the House is meeting as the House of Representatives”; this article counts the 435 voting seats. ^[3]

Two seats were vacant on September 17, 2026, according to the Clerk of the House. ^[5] Those districts, like the other 433, are on the November 3 ballot for the next Congress. ^[2] State rules decide what it takes to win that day; your state election office’s page has the details.

How many seats does a party need to win the House?

A majority of 435 is 218. The party that reaches it organizes the chamber: the Constitution says the House “shall chuse their Speaker and other Officers.” ^[1][3]

As of September 17, 2026, the Clerk of the House listed 218 Republicans, 214 Democrats, 1 independent and 2 vacancies. ^[5] Voters elected 220 Republicans and 215 Democrats in November 2024, according to the House Historian, whose table records “the House party divisions as of the initial election results for a particular Congress”; membership shifts during a term. ^[6]

Who will win the House in 2026?

No one can know before the votes are counted, and the Ledger does not forecast elections. Control is decided by 435 separate contests, each in “a specific congressional district.” ^[3]

In the 23 midterm elections from 1934 through 2022, the president’s party lost House seats 20 times, according to the American Presidency Project at UC Santa Barbara; the exceptions were 1934, 1998 and 2002. ^[7] The pattern has run against presidents of both parties.

History is a pattern, not a rule, and this year many contests are held on new lines. ^[4]

The new maps: which states redrew their House districts

States draw their own congressional districts: the Constitution leaves the “Times, Places and Manner” of House elections to each state’s legislature, subject to any rules Congress makes. ^[1] Redistricting usually follows the census the Constitution requires “within every subsequent Term of ten Years”; this cycle it did not wait. ^[1] As of September 17, 2026, the pages and reports cited below show nine states voting on a House map that differs from the one they used in 2024. ^{[16][17][19][20][21][22]}

• Texas. “The district plans in effect for the 2026 elections include the congressional redistricting plan enacted by the 89th Legislature, 2nd Called Session,” the Texas Legislative Council says. ^[16] In April 2026 the U.S. Supreme Court “permanently upheld the new map,” Stateline reported. ^[19]
• California. Voters approved Proposition 50, “Congressional Redistricting,” on November 4, 2025, by 7,453,339 votes (64.4%) to 4,116,998 (35.6%). ^[17] It lets a legislature-drawn map temporarily replace the independent commission’s, Stateline reported: “The new map is valid through 2030.” ^[19]
• North Carolina and Ohio. North Carolina’s legislature “redrew the state’s congressional map last fall,” and an Ohio commission “approved a new map last October,” Stateline reported; Ohio Capital Journal described the commission’s vote as unanimous. ^[19][13]
• Utah. The state votes on “a new court-ordered map” that followed “a multi-year legal battle,” according to Stateline. ^[19]
• Florida and Tennessee. Florida’s Legislature “passed new congressional districts just hours after” the Supreme Court’s April 29, 2026 ruling in Louisiana v. Callais, and Tennessee “adopted new U.S. House districts a week after the ruling,” the Associated Press reported. ^[20][15]
• Louisiana. Lawmakers “passed a new congressional map” on May 29, 2026, the AP reported; candidates qualified in August under the altered “congressional district boundaries,” and they meet on November 3 in an open primary, “with all candidates competing against each other on one ballot,” Louisiana Illuminator reported. ^[20][21]
• Alabama. “The Supreme Court in June granted Alabama permission to switch maps,” the AP reported, and new primaries followed in the affected districts in August. ^[22]

The last four changes came during or after Louisiana v. Callais, decided April 29, 2026, in which the Supreme Court held that “the Voting Rights Act did not require Louisiana to create an additional majority-minority district,” so “no compelling interest justified the State’s use of race in creating SB8,” the map at issue. ^{[15][19][20][22]} Justice Alito wrote for a six-member majority; Justice Kagan dissented, joined by Justices Sotomayor and Jackson. ^[15]

Missouri shows how late these questions can run. Stateline counted its new map among the nine redrawn by May. ^[19] But on September 10, 2026, Secretary of State Denny Hoskins said “the only governing court order in effect is from the Missouri Supreme Court” and that his office “is directing local election authorities to use the 2022 congressional map.” ^[18]

Find your 2026 district before you look up your race

The House’s Find Your Representative tool works by “matching your ZIP code to your congressional district,” but it shows districts “for the current Congress.” ^[4] This year it carries a caution: “Many Congressional District boundaries have been re-drawn since the start of the current Congress.” ^[4]

“Updates to these district boundaries may have changed what district you vote(d) in during 2026 primary and general elections, but will not change the Congressional district in which you are currently represented until these changes go into effect after the start of the new Congress in January of 2027.”

U.S. House of Representatives, Find Your Representative ^[4]

In a redrawn state, the person who represents you today may not be on your November ballot. ^[4][16] Your sample ballot settles it. The Ledger’s state guides, including Texas, Florida, Ohio, Tennessee, California and Missouri, link to each state’s official voter tools.

House races 2026: who is on the ballot in eight districts on the board

The table names the candidates in eight House contests the Ledger follows, from the state’s official list wherever the Ledger could open it on September 17, 2026. ^{[8][9][10][11]}

Three of the eight are rematches of 2024: Perry and Stelson, Kaptur and Merrin, and Crane and Nez, a race Crane won “54.5% to 45.5%.” ^[12][13][14] Other House contests with Ledger pages include Arizona 1st District race 2026: Feely vs. Shah, Nevada 2nd District race 2026: Flippo vs. Benitez-Thompson, Florida 7th District race 2026: Elijah vs. Dalton, Florida 22nd District race 2026: Askar vs. Dandiya, South Carolina 1st District race 2026: Honeycutt vs. Lacore, Tennessee 9th District race 2026: Taylor vs. Pearson, Louisiana 6th District race 2026: Miguez vs. Banks and Missouri 5th District race 2026: Brattin vs. Cleaver.

Janelle Stelson and Pennsylvania’s 10th District

Janelle Stelson is the Democratic nominee in Pennsylvania’s 10th Congressional District, which “includes all of Dauphin County and parts of Cumberland and York Counties.” ^[12] Pennsylvania Capital-Star, which calls her a former “WGAL anchor,” reported that she won the May 19, 2026 primary over Dauphin County Commissioner Justin Douglas, setting up “a re-match against incumbent Republican Rep. Scott Perry in November.” ^[12] In 2024, it reported, “she lost by just over 1% of the vote.” ^[12]

What happens after November 3

The House notes: “The winner of a Congressional election does not represent the constituency to which they were elected until officially recognized by the House of Representatives as an active Member of Congress.” ^[4] The members elected on November 3 serve in “the Congress commencing on the 3d day of January next thereafter”: January 3, 2027. ^[2]

Questions and answers