Republican-held seats worth 47 weighted votes are contested this year. Democrats would need to flip 823 weighted votes to gain control, so control can't change in 2026.
| Seat | Current member | Weighted vote | 2026 race |
|---|---|---|---|
| Afton | John H. Lawrence R | 142 | Contested John Lawrence R vs. Jason H. Wicks O |
| Bainbridge | Dolores Nabinger D | 156 | Unopposed Dolores Nabinger D |
| Columbus | Charles Edmonds I | 47 | Unopposed Charles Edmonds O |
| Coventry | Cammie Wyckoff R | 79 | Unopposed Cammie Wyckoff O |
| German | Patricia Pittsley D | 16 | Unopposed Patricia Pittsley D |
| Greene | Bernard E. McDermott R | 257 | Seat not up for election |
| Guilford | Gilda P. Ward R | 140 | Unopposed Gilda P. Ward RO |
| Lincklaen | Sharon Monro R | 19 | Seat not up for election |
| McDonough | Raymond E. Wakefield, Jr. R | 42 | Unopposed Raymond E. Wakefield Jr. R |
| New Berlin | Wendy Rifanburg C | 130 | Unopposed Wendy Rifanburg C |
| North Norwich | Robert E. Wansor R | 86 | Unopposed Robert E. Wansor R |
| Norwich (city) Wards 1-2-3 | James J. McNeil D | 180 | Seat not up for election |
| Norwich (city) Wards 4-5-6 | Robert M. Jeffrey R | 177 | Seat not up for election |
| Norwich (town) | Stanley D. Foulds R | 182 | Unopposed Stanley D. Foulds R |
| Otselic | Darryl Fox R | 45 | Unopposed Michael Foor-Pessin DR |
| Oxford | Alan D. Davis R | 183 | Unopposed Alan Davis R |
| Pharsalia | Jeremiah J. Micklas D | 27 | Unopposed Jeremiah Micklas D |
| Pitcher | Jeffrey B. Blanchard R | 35 | Unopposed Jeffrey B. Blanchard R |
| Plymouth | Timothy Manwarren R | 84 | Unopposed Timothy Manwarren RO |
| Preston | Steven Jon Palmatier R | 47 | Contested Eileen Gyles Andrews DO vs. Steven Jon Palmatier R |
| Sherburne | Charles A. Mastro R | 199 | Unopposed Charles A. Mastro R |
| Smithville | John J. Cammarata R | 65 | Unopposed John J. Cammarata R |
| Smyrna | Michael R. Khoury R | 65 | Unopposed Matthew B. Powrie R |