- Lead
- 62,917
- Total
- 402,939
- vs nation
- R+14.1
Ohio 8th Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 60,910
- Total
- 414,438
- vs nation
- R+19.2
- Lead
- 76,697
- Total
- 395,273
- vs nation
- R+21.5
- Lead
- 68,524
- Total
- 390,174
- vs nation
- R+21.4
- Lead
- 60,060
- Total
- 397,567
- vs nation
- R+22.4
- Lead
- 96,176
- Total
- 393,150
- vs nation
- R+22.0
- Lead
- 83,142
- Total
- 339,241
- vs nation
- R+25.0
- Lead
- 49,651
- Total
- 321,884
- vs nation
- R+23.9
Key facts
- 2024 presidential margin
- R+15.6MIT Election Lab
- Population
- 786,2542024 5-year
- Population density
- 467 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,685 sq miTIGER/Line
- Median household income
- $78,6732024 5-year
- White (non-Hispanic)
- 73.4%2024 5-year
- Black
- 13.3%2024 5-year
- Hispanic / Latino
- 4.8%2024 5-year
- Peak Democratic margin
- D+10.9 in 1936MIT Election Lab
- Peak Republican margin
- R+40.6 in 1984MIT Election Lab
- Most similar
- Congressional District 1, OK · twin score 87.0
presidential history
Party record book
Ohio 8th Congressional 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
53.7%
141,765 votes · D+7.3 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 52.6%
Republican
Ronald Reagan1984
70.0%
218,893 votes · R+40.6 · modeled estimate
Runner-up · Richard Nixon, 1972 · 69.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
173,644votes
41.9% of the vote · R+14.7 · modeled estimate
Runner-up · Kamala Harris, 2024 · 168,020 votes
Republican
George W. Bush2004
243,789votes
62.0% of the vote · R+24.5 · modeled estimate
Runner-up · Donald Trump, 2020 · 234,554 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
+8.9pts D vs U.S.
Place R+17.3 · U.S. R+26.2 · modeled estimate
Runner-up · William J. Bryan, 1908 · −1.4 pts
Republican
George H. W. Bush1988
+27.0pts R vs U.S.
Place R+34.8 · U.S. R+7.7 · modeled estimate
Runner-up · Gerald Ford, 1976 · +25.2 pts
Current officeholders
Federal officeholders only. State and local officeholders are planned for the next data pass.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Ohio's 8th congressional district, anchored in the northwestern corner of the state, recorded an R+15.6 presidential margin in 2024, making it among the most reliably one-sided districts in the state by raw vote share.
Across the recorded series it reached a Democratic high of 10.9 points in 1936 and a Republican high of 40.6 points in 1984. Between 2020 and 2024 the district moved 0.9 points toward the Republican candidate; the 2024 margin was 15.6 points.
A population of 786,254, a 73% non-Hispanic-white share, and a median household income of $78,673 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 1 and Congressional District 3.
The congressional 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 8th Congressional District. Akashic. https://akashic.app/cd/3908/. Accessed May 20, 2026. License: CC BY 4.0.