2026 Midterms · U.S. House
2026 House Elections
435 seats. One path to a House majority.
All 435 seats are on the ballot. With every seat filled, 218 seats make a majority; Democrats need a net gain of four to reach it. Use the map to explore district-by-district outcomes.
Starting point: Current House roster by district number; the two vacant seats remain unassigned. Your edits are scenarios, not forecasts.
Build a House scenario
The map starts with the current member’s party by district number. The two vacant seats remain toss-ups. The 2026 map may use changed district boundaries, so colors follow the current roster’s district labels. Roster checked September 26, 2026 against the House Clerk’s member list and vacancy list.
Selected districts to follow
Current seat holders, not 2026 nominees. 9 of these 12 are Republican-held.
| District | Currently held by | Party | In the seat since |
|---|---|---|---|
| CA-22 |  David Valadao |  Republican | 2021 |
| NY-17 |  Mike Lawler | Republican | 2023 |
| WA-03 |  Marie Gluesenkamp Perez |  Democratic | 2023 |
| NE-02 | Don Bacon | Republican | 2017 |
| VA-02 | Jen Kiggans | Republican | 2023 |
| PA-01 |  Brian Fitzpatrick | Republican | 2017 |
| PA-07 | Ryan Mackenzie | Republican | 2025 |
| PA-10 | Scott Perry | Republican | 2013 |
| IA-01 | Mariannette Miller-Meeks | Republican | 2021 |
| CO-08 | Gabe Evans | Republican | 2025 |
| NY-04 |  Laura Gillen | Democratic | 2025 |
| ME-02 | Jared Golden | Democratic | 2019 |
These are current officeholders, not 2026 match-ups. The district selection is editorial and is not an official rating or an exhaustive battleground list. Some sitting members will not be on the ballot. Sabato’s Crystal Ball’s overall House outlook says the Democrats favoured on a small battlefield.
Seats needed for a majority
With all 435 seats filled, 218 seats are a majority. Democrats currently hold 214 and need a net gain of 4 to reach that number. Republicans hold 218. The Clerk lists two vacancies, so the membership can change when special-election winners take office.
Frequently Asked Questions
How many seats are needed to control the House?
218 of 435. As of September 26, 2026, Republicans hold 218, Democrats hold 214, one seat is held by an independent, and 2 seats are vacant. Republicans are at the 218-seat threshold.
Are all House seats up in 2026?
Yes. All 435 voting seats are elected every two years, which is why the House can change hands in a single night while the Senate turns over a third at a time.
Why are there no ratings or percentages next to each district?
This page does not publish a district-level rating or probability. The table is a selected set of districts and their current seat holders, not a complete ballot or numerical ranking. Polymarket has a House-control market, but no market for individual districts.
Can I share a map I have built?
Yes. Open the full interactive map, assign the districts, and use the Share button for a link or embed code.
Sources and methodology
The map is a scenario builder, not a forecast. The table shows 12 selected districts and the people currently holding those seats; it is not a complete list of 2026 nominees or an official ratings table. House-control odds come from Polymarket. Current membership and vacancies are checked against the House Clerk.
Source references reviewed . Live market panels show their own read time; check state election offices for certified candidate lists and results.
- Current member list — Office of the House Clerk
- Current vacancies and special elections — Office of the House Clerk
- Official state election offices — USAGov
- 2026 primary and general election calendar — Federal Voting Assistance Program
- House candidates and filings — Federal Election Commission
- House-control market — Polymarket
- House outlook — Sabato’s Crystal Ball