HarrisDemocratic28.1%44,615TrumpRepublican71.1%112,757OtherAll other candidates0.8%1,327
R+42.9- Lead
- 68,142
- Total
- 158,699
- vs nation
- R+41.5
modeled Census-place estimatemodeled estimate
Akashicstate senate district
Ohio 31st State Senate District
Office (updates table and map)
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
President results by year
Modeled candidate-vote estimate on current district boundaries
BidenDemocratic29.4%47,895TrumpRepublican69.0%112,247OtherAll other candidates1.6%2,545
R+39.6- Lead
- 64,352
- Total
- 162,687
- vs nation
- R+44.0
modeled Census-place estimatemodeled estimate
ClintonDemocratic29.0%44,400TrumpRepublican64.1%98,090OtherAll other candidates6.8%10,476
R+35.1- Lead
- 53,690
- Total
- 152,966
- vs nation
- R+37.2
modeled Census-place estimatemodeled estimate
ObamaDemocratic42.4%64,507RomneyRepublican55.3%84,182OtherAll other candidates2.3%3,470
R+12.9- Lead
- 19,675
- Total
- 152,159
- vs nation
- R+16.8
modeled Census-place estimatemodeled estimate
ObamaDemocratic44.9%70,581McCainRepublican52.7%82,772OtherAll other candidates2.4%3,771
R+7.8- Lead
- 12,191
- Total
- 157,124
- vs nation
- R+15.0
modeled Census-place estimatemodeled estimate
KerryDemocratic41.3%64,791BushRepublican58.2%91,335OtherAll other candidates0.4%681
R+16.9- Lead
- 26,544
- Total
- 156,807
- vs nation
- R+14.5
modeled Census-place estimatemodeled estimate
GoreDemocratic39.5%52,092BushRepublican56.5%74,563OtherAll other candidates4.1%5,374
R+17.0- Lead
- 22,471
- Total
- 132,029
- vs nation
- R+17.5
modeled Census-place estimatemodeled estimate
ClintonDemocratic40.6%51,940DoleRepublican43.2%55,231OtherAll other candidates16.2%20,728
R+2.6- Lead
- 3,291
- Total
- 127,899
- vs nation
- R+11.1
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+42.9MIT Election Lab
- Population
- 345,2562024 5-year
- Population density
- 160 / sq mi2024 5-year · TIGER/Line
- Land area
- 2,154 sq miTIGER/Line
- Median household income
- $66,4772024 5-year
- White (non-Hispanic)
- 91.0%2024 5-year
- Black
- 1.8%2024 5-year
- Hispanic / Latino
- 2.4%2024 5-year
- Peak Democratic margin
- D+27.7 in 1964MIT Election Lab
- Peak Republican margin
- R+51.3 in 1928MIT Election Lab
- Most similar
- State Senate District 17, OH · twin score 95.7
presidential history
Party record book
Ohio 31st State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
63.9%
70,061 votes · D+27.7 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 57.1%
Republican
Herbert Hoover1928
75.3%
68,720 votes · R+51.3 · modeled estimate
Runner-up · Donald Trump, 2024 · 71.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
70,581votes
44.9% of the vote · R+7.8 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 70,061 votes
Republican
Donald Trump2024
112,757votes
71.1% of the vote · R+42.9 · modeled estimate
Runner-up · Donald Trump, 2020 · 112,247 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
James M. Cox1920
+13.5pts D vs U.S.
Place R+12.7 · U.S. R+26.2 · modeled estimate
Runner-up · William J. Bryan, 1896 · +7.1 pts
Republican
Donald Trump2020
+44.0pts R vs U.S.
Place R+39.6 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2024 · +41.5 pts
current representation
Current officeholders
RAl LandisState Senate · 31
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 2 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 27.3%40,979 | 72.7%109,095 | 150,074 |
| 2020 | R | 27.0%42,314 | 73.0%114,219 | 156,533 |
With a 42.9-point Republican presidential margin in 2024, this district ranks among the state's most one-sided, pointing to a heavily rural electorate where statewide and legislative contests rarely generate competitive general-election races.
Across the recorded series it reached a Democratic high of 27.7 points in 1964 and a Republican high of 51.3 points in 1928. Between 2020 and 2024 the district moved 3.4 points toward the Republican candidate; the 2024 margin was 42.9 points.
A population of 345,256, a 91% non-Hispanic-white share, and a median household income of $66,477 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 17 and State Senate District 26.
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
State Senate District 17
Ohio
95.7twin score
12-yr trend2016–2024 trajectory
State Senate District 26
Ohio
93.7twin score
12-yr trend2016–2024 trajectory
State Senate District 30
Ohio
93.7twin score
12-yr trend2016–2024 trajectory≠ % unaffiliated
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Ohio 31st State Senate District. Akashic. https://akashic.app/sld-upper/39031/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Ohio at the ballot boxAll elections →
Places within Ohio 31st State Senate District
counties it covers5
Frequently asked questions
How did Ohio 31st State Senate District vote in 2024?
In 2024, Ohio 31st State Senate District voted Republican by 42.9 points (R+42.9), carried by the Republican candidate. Out of 158,699 votes cast, 44,615 went Democratic and 112,757 went Republican.
When did Ohio 31st State Senate District last vote Democratic?
The most recent presidential election in which Ohio 31st State Senate District voted Democratic was 1964.
How many people live in Ohio 31st State Senate District?
Ohio 31st State Senate District has a population of 345,256 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Ohio 31st State Senate District?
Median household income in Ohio 31st State Senate District is $66,477 — below the national median of $80,734. The Ohio state median is $71,389.
What is the political history of Ohio 31st State Senate District?
Akashic tracks 38 presidential elections in Ohio 31st State Senate District from 1876 to 2024. Of those, 11 went Democratic and 27 went Republican.