Republican-held seats worth 17 weighted votes are contested this year. Democrats would need to flip 53 weighted votes to gain control, so control can't change in 2026.
| Seat | Current member | Weighted vote | 2026 race |
|---|---|---|---|
| Andes | Ritchie L. Gabriel R | 5 | Unopposed Ritchie Gabriel R |
| Bovina | Tina B. Mole R | 3 | Unopposed Tina B. Mole R |
| Colchester | Robert W. Hafele R | 8 | Unopposed Robert W. Hafele R |
| Davenport | Timothy S. Kelso R | 13 | Unopposed Timothy Kelso R |
| Delhi | Maya I. Boukai D | 22 | Contested Maya Boukai DO vs. Mark E. Tuthill RC |
| Deposit | Rebecca L. Walley R | 6 | Seat not up for election |
| Franklin | Donald T. Smith R | 10 | Unopposed Donald T. Smith R |
| Hamden | Wayne E. Marshfield D | 5 | Contested Jonathan Kilday D vs. Wayne L. Shepard RO |
| Hancock | Jerry Vernold R | 13 | Contested Samuel N. Rowe Jr. RO vs. Jerry Vernold CO |
| Harpersfield | Lisa M. Driscoll R | 6 | Seat not up for election |
| Kortright | George E. Haynes Jr. R | 7 | Unopposed George Haynes Jr. R |
| Masonville | Betty L. Scott R | 6 | Unopposed Betty Scott R |
| Meredith | James G. Ellis R | 7 | Contested Stephanie Munro DO vs. James G. Ellis RO |
| Middletown | Glen A. Faulkner D | 15 | Unopposed Glen A. Faulkner DO |
| Roxbury | Allen R. Hinkley R | 10 | Contested Thomas OBrien DO vs. Allen Hinkley RCO |
| Sidney | Eric T. Wilson R | 25 | Seat not up for election |
| Stamford | John S. Kosier R | 9 | Unopposed John S. Kosier R |
| Tompkins | William G. Layton D | 6 | Seat not up for election |
| Walton | Joseph M. Cetta R | 24 | Unopposed Joseph Cetta R |