Ohio House of Representatives seat · lines in effect since 2024
Ohio House District 31
A district of about 130,000 people, 40% of adults with a bachelor's degree. It votes R+0.4 relative to the nation for president.
Where it sits among all 99 seats
Every Ohio House of Representatives 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.
| 2016 | 2018 | 2024 | 2026 | |
|---|---|---|---|---|
| U.S. Senate | R+15.3 | D+13.2 | D+7.3 | No race |
| Governor | No race | D+4.9 | No race | No race |
| Ohio House of Representatives | No race | No race | R+6.0 | D+14.1 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: Ohio Secretary of StateUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 99 seats. Small marks are other seats in Ohio. The black marker is District 31.
Higher than 78% of seats.
Lower than 57% of seats.
Lower than 83% of seats.
Higher than 50% of seats.
Higher than 77% of seats.
Denser than 56% 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 3547% college gradsR+1.2Flipped DDistrict 17
44% college gradsR+6.3Flipped DDistrict 23
33% college gradsR+0.8Held DDistrict 44
43% college gradsR+9.6Counting
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 2024.
- J. Noah Spinner (D)
2027– · Won 2026 by 14.1 - Bill Roemer (R)
2025–2027 · Won 2024 by 6.0
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)