- Lead
- 7,915
- Total
- 76,376
- vs nation
- R+8.9
Indiana 20th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 8,777
- Total
- 76,696
- vs nation
- R+15.9
- Lead
- 14,862
- Total
- 63,662
- vs nation
- R+25.4
- Lead
- 21,518
- Total
- 56,300
- vs nation
- R+42.1
- Lead
- 14,007
- Total
- 52,794
- vs nation
- R+33.8
- Lead
- 22,777
- Total
- 43,348
- vs nation
- R+50.1
- Lead
- 16,903
- Total
- 31,142
- vs nation
- R+54.8
- Lead
- 12,631
- Total
- 25,492
- vs nation
- R+58.1
Key facts
- 2024 presidential margin
- R+10.4MIT Election Lab
- Population
- 135,3132024 5-year
- Population density
- 1,014 / sq mi2024 5-year · TIGER/Line
- Land area
- 133 sq miTIGER/Line
- Median household income
- $110,8192024 5-year
- White (non-Hispanic)
- 82.7%2024 5-year
- Black
- 3.3%2024 5-year
- Hispanic / Latino
- 5.3%2024 5-year
- Peak Republican margin
- R+68.6 in 1972MIT Election Lab
- Most similar
- State Senate District 23, KS · twin score 93.1
presidential history
Party record book
Indiana 20th 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
Kamala Harris2024
43.8%
33,448 votes · R+10.4 · modeled estimate
Runner-up · Joe Biden, 2020 · 43.3%
Republican
Richard Nixon1972
84.2%
8,571 votes · R+68.6 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 83.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
33,448votes
43.8% of the vote · R+10.4 · modeled estimate
Runner-up · Joe Biden, 2020 · 33,176 votes
Republican
Donald Trump2020
41,953votes
54.7% of the vote · R+11.4 · modeled estimate
Runner-up · Donald Trump, 2024 · 41,363 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
James M. Cox1920
−6.6pts D vs U.S.
Place R+32.8 · U.S. R+26.2 · modeled estimate
Runner-up · Kamala Harris, 2024 · −8.9 pts
Republican
Bob Dole1996
+58.1pts R vs U.S.
Place R+49.5 · U.S. D+8.5 · modeled estimate
Runner-up · George H. W. Bush, 1988 · +56.0 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 | R | 44.0%29,757 | 56.0%37,852 | 67,609 |
Indiana 20th State Senate District sits in the Upper Midwest. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 68.6 points in 1972. Between 2020 and 2024 the district moved 1.1 points toward the Democratic candidate; the 2024 margin was 10.4 points.
A population of 135,313, a 83% non-Hispanic-white share, and a median household income of $110,819 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 23 and State Senate District 37.
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 20th State Senate District. Akashic. https://akashic.app/sld-upper/18020/. Accessed May 20, 2026. License: CC BY 4.0.