Decatur County, Indiana: Farm Belt county. In 2024, voted R+58%. Republican peak: R+58 in 2024.
Key facts
- 2024 presidential margin
- R+58MIT Election Lab
- Political typology
- Farm BeltAkashic typology
- Population
- 26,4222024 5-year
- Median household income
- $69,7832024 5-year
- White (non-Hispanic)
- 93.3%2024 5-year
- Black
- 0.7%2024 5-year
- Hispanic / Latino
- 2.5%2024 5-year
- Peak Democratic margin
- D+19 in 1912MIT Election Lab
- Peak Republican margin
- R+58 in 2016MIT Election Lab
- Most similar
- Shelby County, IN · similarity 1.00
2024 results by precinct
2024 precinct map of Decatur CountyPrecinct-level 2024 presidential results for Decatur County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | −3.2% |
| 1896 | −6.1% |
| 1900 | −5.4% |
| 1904 | −14.6% |
| 1908 | −4.9% |
| 1912 | +19.0% |
| 1916 | −6.5% |
| 1920 | −16.9% |
| 1924 | −8.8% |
| 1928 | −17.4% |
| 1932 | +7.8% |
| 1936 | −2.4% |
| 1940 | −15.8% |
| 1944 | −22.3% |
| 1948 | −14.9% |
| 1952 | −31.1% |
| 1956 | −30.1% |
| 1960 | −20.8% |
| 1964 | +8.4% |
| 1968 | −19.0% |
| 1972 | −38.4% |
| 1976 | −11.9% |
| 1980 | −21.8% |
| 1984 | −40.4% |
| 1988 | −35.2% |
| 1992 | −23.5% |
| 1996 | −16.9% |
| 2000 | −35.2% |
| 2004 | −47.8% |
| 2008 | −24.4% |
| 2012 | −40.5% |
| 2016 | −58.1% |
| 2020 | −58.1% |
| 2024 | −58.4% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 2,406 | 9,491 | 12,135 | ||
| R | 2,439 | 9,575 | 12,287 | ||
| R | 2,121 | 8,790 | 11,478 | ||
| R | 2,941 | 7,119 | 10,327 | ||
| R | 3,892 | 6,449 | 10,488 | ||
| R | 2,621 | 7,499 | 10,199 | ||
| R | 2,889 | 6,115 | 9,171 | ||
| R | 3,190 | 4,782 | 9,409 | ||
| R | 2,774 | 5,195 | 10,291 | ||
| R | 2,979 | 6,245 | 9,272 | ||
| R | 2,766 | 6,551 | 9,363 | ||
| R | 3,646 | 5,819 | 9,951 | ||
| R | 4,365 | 5,555 | 9,985 | ||
| R | 2,994 | 6,761 | 9,822 | ||
| R | 3,602 | 5,474 | 9,833 | ||
| D | 5,564 | 4,702 | 10,315 | ||
| R | 4,080 | 6,240 | 10,370 | ||
| R | 3,427 | 6,390 | 9,851 | ||
| R | 3,393 | 6,490 | 9,961 | ||
| R | 3,808 | 5,163 | 9,066 | ||
| R | 3,471 | 5,479 | 9,003 | ||
| R | 4,417 | 6,087 | 10,547 | ||
| R | 4,887 | 5,126 | 10,107 | ||
| D | 5,437 | 4,646 | 10,198 | ||
| R | 3,791 | 5,400 | 9,246 | ||
| R | 4,092 | 4,907 | 9,269 | ||
| R | 3,896 | 5,516 | 9,566 | ||
| R | 2,374 | 2,717 | 5,287 | ||
| D | 2,246 | 1,263 | 5,170 | ||
| R | 2,564 | 2,838 | 5,607 | ||
| R | 2,341 | 3,178 | 5,728 | ||
| R | 2,598 | 2,900 | 5,622 | ||
| R | 2,520 | 2,848 | 5,419 | ||
| R | 2,355 | 2,519 | 5,100 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
29.0%
English
13.5%
Irish
10.6%
American
10.3%
Scottish
2.0%
Polish
1.6%
Italian
1.2%
Sample size too small to break out by ancestry reliably.
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
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.
2024 ACS
Age distribution by sex
Median age: 39.8 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$69,783
Decatur County ranks near the middle of US counties.
Decatur County$69,783
Indiana$71,957
United States$80,734
Decatur County ranks near the middle of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
10.2%
Child poverty is below the national average.
Children under 1810.9%
Working age (18–64)9.7%
Seniors (65+)13.3%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
97.3%
speak English only
Spanish2.1%
Other Indo-European0.4%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 57.4% of residents not counted as adherents by any reporting body.
Decatur County, a rural stretch of south-central Indiana anchored by Greensburg, recorded an R+58.5 presidential margin in 2024 — among the widest in a state where small agricultural counties have moved sharply toward one-party dominance over the past two decades.
The Republican margin here reached fifty-eight points in 2024. The 2024 margin was fifty-eight points.
A population of 26,422, a 93% non-Hispanic-white share, and a median household income of $69,783 describe an agricultural county. The county's voting pattern over the last decade is most similar to that of Shelby County and LaGrange County.
Most similar counties
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.
Decatur County, Indiana. Akashic. https://akashic.app/county/18031/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More farm belt counties
Frequently asked questions
How did Decatur County, Indiana vote in 2024?
In 2024, Decatur County, Indiana voted Republican by 58.4 points (R+58), carried by the Republican candidate. Out of 12,135 votes cast, 2,406 went Democratic and 9,491 went Republican.
What is Decatur County, Indiana's political typology?
Akashic places Decatur County, Indiana in the "Farm Belt" typology — Rural Plains and Midwest farm counties — Republican, with modest recent movement. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 3 times, Republican 31 times, and other 0 times.
When did Decatur County, Indiana last vote Democratic?
The most recent presidential election in which Decatur County, Indiana voted Democratic was 1964.
How many people live in Decatur County, Indiana?
Decatur County, Indiana has a population of 26,422 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Decatur County, Indiana?
Median household income in Decatur County, Indiana is $69,783 — below the national median of $80,734. The Indiana state median is $71,957.
What is the political history of Decatur County, Indiana?
Akashic tracks 38 presidential elections in Decatur County, Indiana from 1876 to 2024. Of those, 3 went Democratic and 31 went Republican. The county's typology — "Farm Belt" — captures where that record, its demographics, and its recent swing place it among American communities.