- Lead
- 123,446
- Total
- 410,270
- vs nation
- R+28.6
Ohio 12th Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 117,347
- Total
- 405,670
- vs nation
- R+33.4
- Lead
- 107,253
- Total
- 364,227
- vs nation
- R+31.5
- Lead
- 55,544
- Total
- 351,746
- vs nation
- R+19.6
- Lead
- 51,264
- Total
- 352,527
- vs nation
- R+21.8
- Lead
- 76,237
- Total
- 336,976
- vs nation
- R+20.2
- Lead
- 60,379
- Total
- 267,317
- vs nation
- R+23.1
- Lead
- 20,875
- Total
- 248,221
- vs nation
- R+16.9
Key facts
- 2024 presidential margin
- R+30.1MIT Election Lab
- Population
- 786,6302024 5-year
- Population density
- 153 / sq mi2024 5-year · TIGER/Line
- Land area
- 5,147 sq miTIGER/Line
- Median household income
- $76,3242024 5-year
- White (non-Hispanic)
- 86.2%2024 5-year
- Black
- 4.0%2024 5-year
- Hispanic / Latino
- 2.1%2024 5-year
- Peak Democratic margin
- D+21.3 in 1964MIT Election Lab
- Peak Republican margin
- R+42.4 in 1928MIT Election Lab
- Most similar
- Congressional District 4, OH · twin score 95.3
presidential history
Party record book
Ohio 12th 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
60.6%
111,107 votes · D+21.3 · modeled estimate
Runner-up · Samuel J. Tilden, 1876 · 55.7%
Republican
Herbert Hoover1928
70.9%
106,679 votes · R+42.4 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 70.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
146,867votes
41.7% of the vote · R+14.5 · modeled estimate
Runner-up · Barack Obama, 2012 · 144,354 votes
Republican
Donald Trump2024
265,048votes
64.6% of the vote · R+30.1 · modeled estimate
Runner-up · Donald Trump, 2020 · 258,387 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
+18.9pts D vs U.S.
Place R+7.3 · U.S. R+26.2 · modeled estimate
Runner-up · William J. Bryan, 1896 · +13.7 pts
Republican
Donald Trump2020
+33.4pts R vs U.S.
Place R+28.9 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2016 · +31.5 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 12th stretches from suburban Franklin County into exurban and rural territory to the north and east, a mix that has trended steadily rightward over the past decade as college-town margins in Columbus's orbit narrowed.
Across the recorded series it reached a Democratic high of 21.3 points in 1964 and a Republican high of 42.4 points in 1928. Between 2020 and 2024 the district moved 1.2 points toward the Republican candidate; the 2024 margin was 30.1 points.
A population of 786,630, a 86% non-Hispanic-white share, and a median household income of $76,324 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 4 and Congressional District 2.
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 12th Congressional District. Akashic. https://akashic.app/cd/3912/. Accessed May 20, 2026. License: CC BY 4.0.