Connecticut State Senate seat · lines in effect since 2022
Connecticut Senate District 31
A district of about 101,000 people, 31% of adults with a bachelor's degree. It votes R+7.2 relative to the nation for president.
Where it sits among all 36 seats
Every Connecticut State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2022 | 2026 | |
|---|---|---|
| Connecticut State Senate | R+21.0 | R+7.4 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: Connecticut Secretary of the StateUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 36 seats. Small marks are other seats in Connecticut. The black marker is District 31.
Lower than 86% of seats.
Higher than 94% of seats.
Higher than 60% of seats.
Lower than 63% of seats.
Lower than 69% of seats.
Less dense than 51% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean. 2 of the 4 flipped this year.
District 3438% college gradsR+2.8Flipped DDistrict 16
37% college gradsR+8.3Held RDistrict 7
38% college gradsD+4.6Flipped DDistrict 32
46% college gradsR+9.7Held R
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Who has held it
These lines took effect in 2022.
- Henri Martin (R)
2023– · Won 2022 by 21.0, 2024 unopposed, 2026 by 7.4
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)