- Lead
- 22,332
- Total
- 65,535
- vs nation
- R+32.6
Ohio 30th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 23,933
- Total
- 66,943
- vs nation
- R+40.2
- Lead
- 27,427
- Total
- 64,004
- vs nation
- R+44.9
- Lead
- 32,008
- Total
- 65,636
- vs nation
- R+52.6
- Lead
- 32,145
- Total
- 66,372
- vs nation
- R+55.7
- Lead
- 40,794
- Total
- 70,835
- vs nation
- R+55.1
- Lead
- 39,038
- Total
- 65,037
- vs nation
- R+60.5
- Lead
- 34,709
- Total
- 62,608
- vs nation
- R+64.0
Key facts
- 2024 presidential margin
- R+34.1MIT Election Lab
- Population
- 113,8052024 5-year
- Population density
- 1,844 / sq mi2024 5-year · TIGER/Line
- Land area
- 61.7 sq miTIGER/Line
- Median household income
- $85,9142024 5-year
- White (non-Hispanic)
- 87.2%2024 5-year
- Black
- 5.7%2024 5-year
- Hispanic / Latino
- 1.6%2024 5-year
- Peak Republican margin
- R+74.5 in 1904MIT Election Lab
- Most similar
- State House District 55, OH · twin score 91.1
presidential history
Party record book
Ohio 30th State House 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
Kamala Harris2024
32.5%
21,282 votes · R+34.1 · modeled estimate
Runner-up · Joe Biden, 2020 · 31.3%
Republican
Dwight D. Eisenhower1956
86.8%
55,512 votes · R+73.5 · modeled estimate
Runner-up · Richard Nixon, 1972 · 85.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
21,282votes
32.5% of the vote · R+34.1 · modeled estimate
Runner-up · Joe Biden, 2020 · 20,922 votes
Republican
Ronald Reagan1984
61,632votes
85.0% of the vote · R+70.6 · modeled estimate
Runner-up · Richard Nixon, 1972 · 59,831 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
Kamala Harris2024
−32.6pts D vs U.S.
Place R+34.1 · U.S. R+1.5 · modeled estimate
Runner-up · James M. Cox, 1920 · −37.8 pts
Republican
Herbert Hoover1932
+69.2pts R vs U.S.
Place R+51.4 · U.S. D+17.8 · modeled estimate
Runner-up · Gerald Ford, 1976 · +68.9 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%31,732 | 41.8%22,787 | 54,519 |
| 2020 | D | 53.9%30,674 | 46.1%26,275 | 56,949 |
Ohio 30th State House District sits in the Industrial Midwest. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 74.5 points in 1904. Between 2020 and 2024 the district moved 1.7 points toward the Democratic candidate; the 2024 margin was 34.1 points.
A population of 113,805, a 87% non-Hispanic-white share, and a median household income of $85,914 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 55 and State House District 59.
The state-house 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 30th State House District. Akashic. https://akashic.app/sld-lower/39030/. Accessed May 20, 2026. License: CC BY 4.0.