- Lead
- 11,492
- Total
- 43,457
- vs nation
- R+25.0
Indiana 12th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 10,250
- Total
- 46,473
- vs nation
- R+26.5
- Lead
- 10,851
- Total
- 41,802
- vs nation
- R+28.0
- Lead
- 8,577
- Total
- 43,289
- vs nation
- R+23.7
- Lead
- 1,941
- Total
- 46,081
- vs nation
- R+11.5
- Lead
- 13,476
- Total
- 38,491
- vs nation
- R+32.6
- Lead
- 10,898
- Total
- 33,863
- vs nation
- R+32.7
- Lead
- 5,898
- Total
- 32,263
- vs nation
- R+26.8
Key facts
- 2024 presidential margin
- R+26.4MIT Election Lab
- Population
- 135,4632024 5-year
- Population density
- 551 / sq mi2024 5-year · TIGER/Line
- Land area
- 246 sq miTIGER/Line
- Median household income
- $66,1392024 5-year
- White (non-Hispanic)
- 65.2%2024 5-year
- Black
- 6.1%2024 5-year
- Hispanic / Latino
- 23.5%2024 5-year
- Peak Democratic margin
- D+30.9 in 1912MIT Election Lab
- Peak Republican margin
- R+44.6 in 1928MIT Election Lab
- Most similar
- State Senate District 14, TN · twin score 82.1
presidential history
Party record book
Indiana 12th 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
55.1%
15,000 votes · D+11.2 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 53.5%
Republican
Herbert Hoover1928
72.0%
12,620 votes · R+44.6 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 69.3%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
21,767votes
47.2% of the vote · R+4.2 · modeled estimate
Runner-up · Joe Biden, 2020 · 17,707 votes
Republican
Donald Trump2020
27,957votes
60.2% of the vote · R+22.1 · modeled estimate
Runner-up · Donald Trump, 2024 · 27,144 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
William J. Bryan1908
+11.5pts D vs U.S.
Place D+1.9 · U.S. R+9.6 · modeled estimate
Runner-up · Woodrow Wilson, 1912 · +11.4 pts
Republican
George W. Bush2000
+32.7pts R vs U.S.
Place R+32.2 · U.S. D+0.5 · modeled estimate
Runner-up · George W. Bush, 2004 · +32.6 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Indiana 12th State Senate District sits in the Upper Midwest. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 30.9 points in 1912 and a Republican high of 44.6 points in 1928. Between 2020 and 2024 the district moved 4.4 points toward the Republican candidate; the 2024 margin was 26.4 points.
A population of 135,463, a 65% non-Hispanic-white share, and a median household income of $66,139 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 13.
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 →
Indiana 12th State Senate District. Akashic. https://akashic.app/sld-upper/18012/. Accessed May 20, 2026. License: CC BY 4.0.