Democrats aren't contesting any Republican-held seats this year, so control can't change in 2026.
| Seat | Current member | Weighted vote | 2026 race |
|---|---|---|---|
| Avon | David L. LeFeber R | 568 | Seat not up for election |
| Caledonia | Daniel Pangrazio R | 352 | Unopposed Daniel L. Pangrazio R |
| Conesus | Donald W. Wester R | 198 | Unopposed Donald W. Wester RD |
| Geneseo | William S. Wadsworth R | 785 | Seat not up for election |
| Groveland | William Devine R | 126 | Seat not up for election |
| Leicester | Richard White R | 179 | Seat not up for election |
| Lima | Jonathan Cates R | 352 | Seat not up for election |
| Livonia | Eric R. Gott R | 610 | Seat not up for election |
| Mount Morris | David DiSalvo R | 375 | Seat not up for election |
| North Dansville | Gregory Paul Horr R | 447 | Seat not up for election |
| Nunda | Merilee Walker R | 230 | Unopposed Stephen M. Rapp DR |
| Ossian | Dwight A. Knapp R | 62 | Seat not up for election |
| Portage | Ivan C. Davis R | 67 | Unopposed Robert D. Gelser RD |
| Sparta | Mark J. Schuster R | 136 | Seat not up for election |
| Springwater | Deborah J. Babbitt Henry R | 196 | Seat not up for election |
| West Sparta | Susan J. Erdle R | 101 | Seat not up for election |
| York | Gerald L. Deming D | 270 | Seat not up for election |