akashic
1876–2024
State Senate District 31·Indiana

Indiana 31st State Senate District votes the way the country votes.

One of Indiana's most lopsided districts by presidential margin

1876 — 2024·38 elections
IN
Latest
D+6
in 2024
Archetype
Bellwether
since the recent cycles
Population
83,287
2024 ACS

Indiana 31st State Senate District, Indiana: Bellwether district. In 2024, voted D+6%. Republican peak: R+40 in 1972.

Key facts

2024 presidential margin
D+6MIT Election Lab
Political archetype
BellwetherAkashic typology
Population
83,2872024 5-year
Median household income
$97,2522024 5-year
White (non-Hispanic)
67.7%2024 5-year
Black
14.6%2024 5-year
Hispanic / Latino
9.2%2024 5-year
Peak Democratic margin
D+20 in 1912MIT Election Lab
Peak Republican margin
R+40 in 1972MIT Election Lab
2024 results by constituent county
2 counties · 1 D · 1 R
R+60
D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
D
+5.5%
19,87617,74238,576
D
+6.5%
20,59818,01939,419
R
−2.2%
15,29716,04533,672
R
−9.7%
13,71916,72131,034
D
+1.2%
15,43815,06130,736
R
−24.9%
9,46415,81325,452
R
−24.9%
7,33912,37820,212
R
−21.6%
6,48110,47418,471
R
−19.9%
5,8959,73219,241
R
−32.0%
5,96111,61217,660
R
−30.7%
5,70210,80816,606
R
−24.8%
5,6349,68416,315
R
−18.7%
6,4599,46416,053
R
−40.4%
4,36710,32514,758
R
−20.8%
4,9317,92314,367
R
−1.6%
6,6886,91113,644
R
−20.3%
5,2607,95413,248
R
−26.7%
4,3577,53811,930
R
−24.5%
4,5787,56112,199
R
−6.7%
4,2374,8519,208
R
−9.1%
4,5195,43210,010
R
−5.8%
5,1905,82911,058
D
+11.8%
5,3824,2329,776
D
+1.8%
4,7724,5979,695
R
−22.9%
3,2145,1348,401
R
−24.1%
2,7184,5267,510
R
−16.4%
2,8554,0117,067
R
−9.2%
1,6742,0333,889
D
+20.0%
1,4347483,432
R
−5.5%
1,6561,8553,650
R
−24.3%
1,1541,9363,224
R
−14.6%
1,2631,7113,070
R
−16.6%
1,1521,6202,826
R
−4.7%
1,0851,1982,387
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Demographics

Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
19.0%
English
12.1%
Irish
9.9%
American
4.6%
Italian
3.1%
Polish
2.5%
Scottish
1.9%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 36.6 in this county, 39.1 nationally
Male
Age
Female
0.5%
85+
0.9%
1.6%
75–84
2.1%
3.9%
65–74
4.5%
5.7%
55–64
6.0%
6.3%
45–54
6.4%
7.0%
35–44
7.4%
6.8%
25–34
7.2%
4.3%
18–24
4.3%
9.6%
5–17
9.2%
3.3%
<5
3.1%
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$97,252
State Senate District 31 ranks near the middle of US counties.
State Senate District 31$97,252
Indiana$71,957
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
9.2%
Child poverty is below the national average.
Children under 1811.9%
Working age (18–64)8.3%
Seniors (65+)8.0%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
85.0%
speak English only
Spanish6.7%
Other Indo-European3.5%
Asian & Pacific Islander3.1%
Other languages1.7%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
14.7%
Other Christian
12.8%
Baptist
5.4%
Mainline Protestant
4.5%
Methodist
3.1%
Non-Christian
2.2%
Pentecostal & Holiness
2.0%
Source · 2020 US Religion Census. Remaining 55.3% of residents not counted as adherents by any reporting body.

With a 2024 presidential margin of R+58.5, this district ranks among the most heavily one-sided state senate constituencies in Indiana, leaving general-election outcomes rarely in doubt and primary contests as the de facto decision point.

The Democratic margin in Indiana 31st State Senate District has rarely exceeded twenty points in modern history; the Republican margin has rarely exceeded forty points. 2024 delivered the district to the Democratic candidate by six points.

Its demographics resemble the country more than they resemble most districts. A 68% non-Hispanic-white share, a 9% poverty rate, and a median household income of $97,252 — all within the broad national range.

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 →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State Senate District 31, Indiana. Akashic. https://akashic.app/sld-upper/18031/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did State Senate District 31, Indiana vote in 2024?
In 2024, State Senate District 31, Indiana voted Democratic by 5.5 points (D+6), carried by the Democratic candidate. Out of 38,576 votes cast, 19,876 went Democratic and 17,742 went Republican.
What is State Senate District 31, Indiana's political archetype?
Akashic classifies State Senate District 31, Indiana as a "Bellwether" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 6 times, Republican 28 times, and other 0 times.
When did State Senate District 31, Indiana last vote Republican?
The most recent presidential election in which State Senate District 31, Indiana voted Republican was 2016.
How many people live in State Senate District 31, Indiana?
State Senate District 31, Indiana has a population of 83,287 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State Senate District 31, Indiana?
Median household income in State Senate District 31, Indiana is $97,252 — above the national median of $80,734. The Indiana state median is $71,957.
What is the political history of State Senate District 31, Indiana?
Akashic tracks 38 presidential elections in State Senate District 31, Indiana from 1876 to 2024. Of those, 6 went Democratic and 28 went Republican. The district's archetype — "Bellwether" — captures the overall trajectory of that voting record.