Indiana 40th 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
Barack Obama2008
66.0%
39,305 votes · D+33.2 · modeled estimate
Runner-up · Joe Biden, 2020 · 63.9%
Republican
Herbert Hoover1928
66.4%
8,204 votes · R+33.2 · modeled estimate
Runner-up · Richard Nixon, 1960 · 64.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
39,305votes
66.0% of the vote · D+33.2 · modeled estimate
Runner-up · Joe Biden, 2020 · 37,741 votes
Republican
George W. Bush2004
21,099votes
44.6% of the vote · D+9.4 · modeled estimate
Runner-up · Mitt Romney, 2012 · 20,776 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
Kamala Harris2024
+30.1pts D vs U.S.
Place D+28.7 · U.S. R+1.5 · modeled estimate
Runner-up · Barack Obama, 2008 · +26.0 pts
Republican
Richard Nixon1960
+30.4pts R vs U.S.
Place R+30.3 · U.S. D+0.2 · modeled estimate
Runner-up · Alf Landon, 1936 · +20.9 pts
current representation
Current officeholders
DShelli YoderState Senate · 40
State legislative officeholder from OpenStates nightly current-legislator data.
In 2024 it voted Democratic by D+28.1, against D+33.2 in 2008. The district had about 101,000 residents, 82% White alone in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 33.2 points in 2008 and a Republican high of 33.2 points in 1928. Between 2020 and 2024 the district moved 1.0 points toward the Republican candidate; the 2024 margin was 28.7 points.
A population of 133,173, a 80% non-Hispanic-white share, and a median household income of $65,321 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 19 and State Senate District 2.
Akashic
Political twins — state-senate districts
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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Indiana 40th State Senate District. Akashic. https://akashic.app/sld-upper/18040/. Accessed May 20, 2026. License: CC BY 4.0.
How did Indiana 40th State Senate District vote in 2024?
In 2024, Indiana 40th State Senate District voted Democratic by 28.7 points (D+28.7), carried by the Democratic candidate. Out of 55,362 votes cast, 35,110 went Democratic and 19,248 went Republican.
When did Indiana 40th State Senate District last vote Republican?
The most recent presidential election in which Indiana 40th State Senate District voted Republican was 2000.
How many people live in Indiana 40th State Senate District?
Indiana 40th State Senate District has a population of 133,173 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Indiana 40th State Senate District?
Median household income in Indiana 40th State Senate District is $65,321 — below the national median of $80,734. The Indiana state median is $71,957.
What is the political history of Indiana 40th State Senate District?
Akashic tracks 38 presidential elections in Indiana 40th State Senate District from 1876 to 2024. Of those, 12 went Democratic and 26 went Republican.