- Lead
- 19,348
- Total
- 47,525
- vs nation
- D+42.2
Indiana 3rd State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 27,191
- Total
- 53,819
- vs nation
- D+46.1
- Lead
- 31,293
- Total
- 54,821
- vs nation
- D+55.0
- Lead
- 37,270
- Total
- 57,485
- vs nation
- D+61.0
- Lead
- 40,342
- Total
- 60,206
- vs nation
- D+59.7
- Lead
- 31,023
- Total
- 51,867
- vs nation
- D+62.3
- Lead
- 30,295
- Total
- 48,793
- vs nation
- D+61.6
- Lead
- 29,168
- Total
- 46,096
- vs nation
- D+54.8
Key facts
- 2024 presidential margin
- D+40.7MIT Election Lab
- Population
- 136,3862024 5-year
- Population density
- 1,197 / sq mi2024 5-year · TIGER/Line
- Land area
- 114 sq miTIGER/Line
- Median household income
- $51,6942024 5-year
- White (non-Hispanic)
- 30.3%2024 5-year
- Black
- 51.3%2024 5-year
- Hispanic / Latino
- 13.9%2024 5-year
- Peak Democratic margin
- D+67.6 in 1936MIT Election Lab
- Peak Republican margin
- R+16.1 in 1920MIT Election Lab
- Most similar
- State Senate District 1, MI · twin score 96.3
presidential history
Party record book
Indiana 3rd 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
Franklin D. Roosevelt1936
83.5%
24,701 votes · D+67.6 · modeled estimate
Runner-up · Barack Obama, 2008 · 83.2%
Republican
Warren G. Harding1920
51.7%
3,567 votes · R+16.1 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 43.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
50,102votes
83.2% of the vote · D+67.0 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 48,481 votes
Republican
Richard Nixon1972
16,478votes
34.0% of the vote · D+31.7 · modeled estimate
Runner-up · Donald Trump, 2024 · 13,732 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
Walter Mondale1984
+70.4pts D vs U.S.
Place D+52.1 · U.S. R+18.2 · modeled estimate
Runner-up · John Kerry, 2004 · +62.3 pts
Republican
William H. Taft1912
−8.6pts R vs U.S.
Place D+28.2 · U.S. D+19.5 · modeled estimate
Runner-up · Warren G. Harding, 1920 · −10.0 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
The district recorded a Democratic presidential margin of D+40.7 in 2024, compared with D+67.0 in 2008. About 114,000 residents lived here, with White alone at 54.9% in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 67.6 points in 1936 and a Republican high of 16.1 points in 1920. Between 2020 and 2024 the district moved 9.8 points toward the Republican candidate; the 2024 margin was 40.7 points.
A population of 136,386, a 30% non-Hispanic-white share, and a median household income of $51,694 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 1 and State Senate District 16.
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 3rd State Senate District. Akashic. https://akashic.app/sld-upper/18003/. Accessed May 20, 2026. License: CC BY 4.0.