- Lead
- 33,154
- Total
- 63,455
- vs nation
- R+50.8
Indiana 43rd State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 30,396
- Total
- 62,830
- vs nation
- R+52.8
- Lead
- 26,518
- Total
- 58,184
- vs nation
- R+47.7
- Lead
- 13,124
- Total
- 54,521
- vs nation
- R+27.9
- Lead
- 10,216
- Total
- 55,958
- vs nation
- R+25.5
- Lead
- 14,171
- Total
- 53,518
- vs nation
- R+24.0
- Lead
- 8,888
- Total
- 46,816
- vs nation
- R+19.5
- Lead
- 329
- Total
- 45,189
- vs nation
- R+9.2
Key facts
- 2024 presidential margin
- R+52.2MIT Election Lab
- Population
- 133,6732024 5-year
- Population density
- 98 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,366 sq miTIGER/Line
- Median household income
- $71,8632024 5-year
- White (non-Hispanic)
- 93.1%2024 5-year
- Black
- 0.7%2024 5-year
- Hispanic / Latino
- 2.0%2024 5-year
- Peak Democratic margin
- D+22.0 in 1912MIT Election Lab
- Peak Republican margin
- R+52.2 in 2024MIT Election Lab
- Most similar
- State Senate District 42, IN · twin score 96.6
presidential history
Party record book
Indiana 43rd 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
59.6%
23,853 votes · D+19.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 55.3%
Republican
Donald Trump2024
75.3%
47,778 votes · R+52.2 · modeled estimate
Runner-up · Donald Trump, 2020 · 73.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
23,853votes
59.6% of the vote · D+19.5 · modeled estimate
Runner-up · Barack Obama, 2008 · 22,468 votes
Republican
Donald Trump2024
47,778votes
75.3% of the vote · R+52.2 · modeled estimate
Runner-up · Donald Trump, 2020 · 45,953 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
John W. Davis1924
+20.3pts D vs U.S.
Place R+4.9 · U.S. R+25.2 · modeled estimate
Runner-up · Alton B. Parker, 1904 · +19.3 pts
Republican
Donald Trump2020
+52.8pts R vs U.S.
Place R+48.4 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2024 · +50.8 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 |
|---|---|---|---|---|
| 2020 | R | 24.9%12,776 | 75.1%38,524 | 51,300 |
In 2024 it voted Republican by R+52.2, against R+18.4 in 2008. About 139,000 residents lived here, with White alone at 93.9% in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 22.0 points in 1912 and a Republican high of 52.2 points in 2024. Between 2020 and 2024 the district moved 3.9 points toward the Republican candidate; the 2024 margin was 52.2 points.
A population of 133,673, a 93% non-Hispanic-white share, and a median household income of $71,863 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 42 and State Senate District 47.
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 43rd State Senate District. Akashic. https://akashic.app/sld-upper/18043/. Accessed May 20, 2026. License: CC BY 4.0.