- Lead
- 10,613
- Total
- 38,339
- vs nation
- D+29.2
Ohio 42nd State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 14,809
- Total
- 42,141
- vs nation
- D+30.7
- Lead
- 19,957
- Total
- 46,852
- vs nation
- D+40.5
- Lead
- 28,170
- Total
- 51,498
- vs nation
- D+50.8
- Lead
- 29,417
- Total
- 53,791
- vs nation
- D+47.4
- Lead
- 24,545
- Total
- 51,991
- vs nation
- D+49.7
- Lead
- 19,537
- Total
- 44,238
- vs nation
- D+43.6
- Lead
- 20,950
- Total
- 43,441
- vs nation
- D+39.7
Key facts
- 2024 presidential margin
- D+27.7MIT Election Lab
- Population
- 114,2462024 5-year
- Population density
- 1,328 / sq mi2024 5-year · TIGER/Line
- Land area
- 86 sq miTIGER/Line
- Median household income
- $43,4052024 5-year
- White (non-Hispanic)
- 49.3%2024 5-year
- Black
- 32.9%2024 5-year
- Hispanic / Latino
- 11.3%2024 5-year
- Peak Democratic margin
- D+59.9 in 1964MIT Election Lab
- Peak Republican margin
- R+28.1 in 1924MIT Election Lab
- Most similar
- State House District 3, IN · twin score 90.0
presidential history
Party record book
Ohio 42nd 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
Lyndon B. Johnson1964
80.0%
36,871 votes · D+59.9 · modeled estimate
Runner-up · Barack Obama, 2008 · 76.5%
Republican
Theodore Roosevelt1904
56.2%
3,578 votes · R+19.2 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 48.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
41,163votes
76.5% of the vote · D+54.7 · modeled estimate
Runner-up · Barack Obama, 2012 · 39,344 votes
Republican
Dwight D. Eisenhower1956
15,814votes
38.3% of the vote · D+23.5 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 15,789 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
George McGovern1972
+52.7pts D vs U.S.
Place D+29.6 · U.S. R+23.2 · modeled estimate
Runner-up · Barack Obama, 2012 · +50.8 pts
Republican
Calvin Coolidge1924
+2.9pts R vs U.S.
Place R+28.1 · U.S. R+25.2 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · −0.5 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Ohio 42nd State House District sits in the Industrial Midwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 59.9 points in 1964 and a Republican high of 28.1 points in 1924. Between 2020 and 2024 the district moved 7.5 points toward the Republican candidate; the 2024 margin was 27.7 points.
A population of 114,246, a 49% non-Hispanic-white share, and a median household income of $43,405 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 3 and State House District 43.
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 42nd State House District. Akashic. https://akashic.app/sld-lower/39042/. Accessed May 20, 2026. License: CC BY 4.0.