8 Republican-held seats are contested this year. Democrats would need to flip 3 to gain control.
| Seat | Current member | 2026 race |
|---|---|---|
| District 1 | Marcus S. Buchanan D | Contested Marcus Buchanan DWFO vs. Colby Garza RC |
| District 2 | Robert K. Bankoski D | Unopposed Robert Bankoski DWF |
| District 3 | Robert M. "Bob" Scudder R | Contested Michael Lee DWF vs. Bob Scudder RC |
| District 4 | Sandra A. Lewis D | Unopposed Sandra Lewis D |
| District 5 | Jason C. Merritt R | Unopposed Jay Merritt RC |
| District 6 | Thomas R. "Tom" Harmon R | Contested Kevin O'Connell DWF vs. Thomas Harmon RC |
| District 7 | Johnathan R. "John" Penhollow R | Contested Carla Rodriguez DWF vs. Johnathan Penhollow RC |
| District 8 | Pierre E. Chagnon R | Unopposed Pierre Chagnon RC |
| District 9 | Vincent DeJoy III D | Contested Vincent DeJoy III D vs. John Vogan RC |
| District 10 | Jamie S. Gustafson R | Contested Julie Jackson-Forsberg DWF vs. Jamie Gustafson RC |
| District 11 | Robert W. "Bob" Whitney Jr. D | Contested Robert W. Whitney Jr. DO vs. Jeremy Maggio RC |
| District 12 | Frederick A. Larson D | Contested Frederick A. Larson DWF vs. Brent P. Sheldon RC |
| District 13 | Thomas M. "Tom" Nelson D | Contested Thomas Nelson DWF vs. Andrew Faulkner RC |
| District 14 | Daniel W. Pavlock R | Unopposed Daniel Pavlock RC |
| District 15 | Lisa A. Vanstrom R | Contested Nikki Pierce DO vs. Lisa Vanstrom RC |
| District 16 | Dalton J. Anthony R | Contested Christopher DeBlass DWF vs. Dalton Anthony RC |
| District 17 | Travis B. Heiser R | Unopposed Travis Heiser RC |
| District 18 | Martin J. "Marty" Proctor R | Contested Dan Morton D vs. Martin Proctor RC |
| District 19 | Frederick S. Johnson R | Contested John Hamels DWF vs. Frederick Johnson RC |