Jefferson County, Indiana: Republican loyalist county. In 2024, voted R+36%. Republican peak: R+36 in 2024.
Key facts
- 2024 presidential margin
- R+36MIT Election Lab
- Political archetype
- Republican loyalistAkashic typology
- Population
- 32,9982024 5-year
- Median household income
- $64,5772024 5-year
- White (non-Hispanic)
- 92.3%2024 5-year
- Black
- 1.0%2024 5-year
- Hispanic / Latino
- 3.5%2024 5-year
- Peak Democratic margin
- D+16 in 1964MIT Election Lab
- Peak Republican margin
- R+36 in 2024MIT Election Lab
- Most similar
- Wexford County, MI · similarity 0.99
2024 results by precinct
2024 precinct map of Jefferson CountyPrecinct-level 2024 presidential results for Jefferson County, with each precinct boundary colored by Democratic-vs-Republican margin.
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Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 4,442 | 9,614 | 14,355 | ||
| R | 4,731 | 9,663 | 14,697 | ||
| R | 4,325 | 8,538 | 13,644 | ||
| R | 5,728 | 7,096 | 13,156 | ||
| R | 6,255 | 7,053 | 13,490 | ||
| R | 5,117 | 7,763 | 12,971 | ||
| R | 5,117 | 6,582 | 11,931 | ||
| D | 5,441 | 4,827 | 11,785 | ||
| D | 5,510 | 4,937 | 13,191 | ||
| R | 5,221 | 6,949 | 12,268 | ||
| R | 4,952 | 7,482 | 12,639 | ||
| R | 5,496 | 6,831 | 13,087 | ||
| D | 6,139 | 5,573 | 11,873 | ||
| R | 4,267 | 6,722 | 11,103 | ||
| R | 4,635 | 5,731 | 11,623 | ||
| D | 6,694 | 4,808 | 11,586 | ||
| R | 5,119 | 6,333 | 11,492 | ||
| R | 4,344 | 6,632 | 11,004 | ||
| R | 4,251 | 6,169 | 10,473 | ||
| R | 4,302 | 5,166 | 9,604 | ||
| R | 4,376 | 5,748 | 10,234 | ||
| R | 4,688 | 5,957 | 10,676 | ||
| R | 4,805 | 5,320 | 10,207 | ||
| D | 5,305 | 4,670 | 10,164 | ||
| R | 3,906 | 5,295 | 9,251 | ||
| R | 3,914 | 5,192 | 9,355 | ||
| R | 4,000 | 5,732 | 9,880 | ||
| R | 2,518 | 2,675 | 5,376 | ||
| D | 2,325 | 1,563 | 5,131 | ||
| R | 2,708 | 2,995 | 5,983 | ||
| R | 2,542 | 3,195 | 6,006 | ||
| R | 2,636 | 3,371 | 6,116 | ||
| R | 2,645 | 3,636 | 6,345 | ||
| R | 2,549 | 3,135 | 5,866 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
20.3%
English
17.4%
American
11.8%
Irish
11.7%
Scottish
2.9%
Italian
2.0%
French
1.6%
African American
0.8%
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.
Age distribution by sex
Median age: 41.8 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.
Median household income
2024 inflation-adjusted dollars
$64,577
Jefferson County ranks near the middle of US counties.
Jefferson County$64,577
Indiana$71,957
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
12.3%
Child poverty is below the national average.
Children under 1813.5%
Working age (18–64)11.7%
Seniors (65+)15.7%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
96.3%
speak English only
Spanish1.7%
Other Indo-European1.2%
Asian & Pacific Islander0.8%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 60.4% of residents not counted as adherents by any reporting body.
Jefferson County sits along the Ohio River in southeastern Indiana, and its 2024 presidential margin of R+36 reflects a rural working-class electorate that has shifted sharply away from its historically competitive Democratic roots.
The Republican margin in Jefferson County reached its widest at thirty-six points in 2024. The margin in 2024 was thirty-six points, in line with the county's deep historical pattern.
Its loyalty is rooted in its place. Median household income of $64,577, a 92% non-Hispanic-white share, and a population of 32,998 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Wexford County and Montmorency County.
Most similar counties
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Jefferson County, Indiana — The Long Memory. Akashic Intelligence — The Long Memory. https://akashic.app/county/18077/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More republican loyalist counties
Frequently asked questions
How did Jefferson County, Indiana vote in 2024?
In 2024, Jefferson County, Indiana voted Republican by 36.0 points (R+36), carried by the Republican candidate. Out of 14,355 votes cast, 4,442 went Democratic and 9,614 went Republican.
What is Jefferson County, Indiana's political archetype?
Akashic classifies Jefferson County, Indiana as a "Republican loyalist" county based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the county has voted Democratic 6 times, Republican 28 times, and other 0 times.
When did Jefferson County, Indiana last vote Democratic?
The most recent presidential election in which Jefferson County, Indiana voted Democratic was 1996.
How many people live in Jefferson County, Indiana?
Jefferson County, Indiana has a population of 32,998 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Jefferson County, Indiana?
Median household income in Jefferson County, Indiana is $64,577 — below the national median of $80,734. The Indiana state median is $71,957.
What is the political history of Jefferson County, Indiana?
Akashic tracks 38 presidential elections in Jefferson County, Indiana from 1876 to 2024. Of those, 6 went Democratic and 28 went Republican. The county's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.