- Lead
- 71,276
- Total
- 145,351
- vs nation
- D+50.5
Ohio 9th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 80,822
- Total
- 157,097
- vs nation
- D+47.0
- Lead
- 74,023
- Total
- 156,866
- vs nation
- D+45.1
- Lead
- 72,049
- Total
- 154,794
- vs nation
- D+42.7
- Lead
- 74,314
- Total
- 157,412
- vs nation
- D+39.9
- Lead
- 55,537
- Total
- 149,154
- vs nation
- D+39.7
- Lead
- 39,988
- Total
- 129,625
- vs nation
- D+30.3
- Lead
- 43,109
- Total
- 130,133
- vs nation
- D+24.6
Key facts
- 2024 presidential margin
- D+49.0MIT Election Lab
- Population
- 348,1242024 5-year
- Population density
- 3,997 / sq mi2024 5-year · TIGER/Line
- Land area
- 87.1 sq miTIGER/Line
- Median household income
- $54,3062024 5-year
- White (non-Hispanic)
- 49.5%2024 5-year
- Black
- 37.8%2024 5-year
- Hispanic / Latino
- 5.1%2024 5-year
- Peak Democratic margin
- D+51.5 in 1936MIT Election Lab
- Peak Republican margin
- R+11.3 in 1924MIT Election Lab
- Most similar
- State Senate District 14, VA · twin score 96.5
presidential history
Party record book
Ohio 9th 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
75.1%
101,757 votes · D+50.1 · modeled estimate
Runner-up · Joe Biden, 2020 · 74.9%
Republican
Theodore Roosevelt1904
45.9%
13,588 votes · R+2.8 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 44.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
117,709votes
74.9% of the vote · D+51.4 · modeled estimate
Runner-up · Barack Obama, 2008 · 115,114 votes
Republican
Ronald Reagan1984
51,358votes
41.5% of the vote · D+16.5 · modeled estimate
Runner-up · Richard Nixon, 1972 · 49,933 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
+50.5pts D vs U.S.
Place D+24.3 · U.S. R+26.2 · modeled estimate
Runner-up · Kamala Harris, 2024 · +50.5 pts
Republican
William H. Taft1912
−13.5pts R vs U.S.
Place D+33.1 · U.S. D+19.5 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · −13.9 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
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 | D | 58.2%97,066 | 41.8%69,705 | 166,771 |
| 2020 | D | 53.9%93,829 | 46.1%80,374 | 174,203 |
The district recorded a Democratic presidential margin of D+49.1 in 2024, compared with D+47.2 in 2008. The district had about 179,000 residents, 63.2% White alone in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 51.5 points in 1936 and a Republican high of 11.3 points in 1924. Between 2020 and 2024 the district moved 2.4 points toward the Republican candidate; the 2024 margin was 49.0 points.
A population of 348,124, a 50% non-Hispanic-white share, and a median household income of $54,306 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 14 and State Senate District 15.
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
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 →
Ohio 9th State Senate District. Akashic. https://akashic.app/sld-upper/39009/. Accessed May 20, 2026. License: CC BY 4.0.