Johnson County, Indiana
Johnson County, INTrumpR+34.3
2024 precinct map of Johnson CountyPrecinct-level 2024 presidential results for Johnson County, with each precinct boundary colored by Democratic-vs-Republican margin, and gold where an independent or third-party candidate carried the precinct.
How it voted
Share of the 2024 vote
| Donald Trump ✓Republican | 66.3% | 51,588 |
|---|---|---|
| Kamala HarrisDemocratic | 32.0% | 24,880 |
| Robert F KennedyWe The People | 0.9% | 730 |
Harris +50Trump +50
139 precincts · 77,832 votes. Hover any precinct for its result.
The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1892–2024.
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | +10.1% |
| 1896 | +14.6% |
| 1900 | +12.8% |
| 1904 | +5.3% |
| 1908 | +12.5% |
| 1912 | +35.8% |
| 1916 | +11.9% |
| 1920 | +5.5% |
| 1924 | −2.6% |
| 1928 | −9.5% |
| 1932 | +20.0% |
| 1936 | +13.1% |
| 1940 | −0.8% |
| 1944 | −6.6% |
| 1948 | +0.5% |
| 1952 | −21.3% |
| 1956 | −24.6% |
| 1960 | −25.2% |
| 1964 | −1.8% |
| 1968 | −29.1% |
| 1972 | −54.9% |
| 1976 | −23.7% |
| 1980 | −38.4% |
| 1984 | −50.3% |
| 1988 | −46.3% |
| 1992 | −31.1% |
| 1996 | −31.7% |
| 2000 | −41.3% |
| 2004 | −48.1% |
| 2008 | −25.5% |
| 2012 | −38.3% |
| 2016 | −41.9% |
| 2020 | −34.7% |
| 2024 | −34.3% |
DemocraticRepublican
voter registration
Registered voters
Total registered voters, over time
Registered voters
| Year | Total registered |
|---|---|
| 2016 | 108,013 |
| 2018 | 103,414 |
| 2020 | 109,058 |
| 2022 | 115,826 |
| 2024 | 123,882 |
Source: U.S. Election Assistance Commission (EAVS)
Johnson County has added tens of thousands of residents over two decades of suburban sprawl south of Indianapolis, yet its presidential margins have remained among the widest in the state, hitting R+34.3 in 2024.
Across the recorded series it reached a Democratic high of 35.8 points in 1912 and a Republican high of 54.9 points in 1972. The 2024 margin was 34.3 points.
A population of 166,315, a 84% non-Hispanic-white share, and a median household income of $90,454 describe the county. The county's voting pattern over the last decade is most similar to that of Hancock County and Rockingham 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.
Johnson County, Indiana. Akashic. https://akashic.app/county/18081/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Cities & towns in Johnson County
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Frequently asked questions
How did Johnson County, Indiana vote in 2024?
In 2024, Johnson County, Indiana voted Republican by 34.3 points (R+34.3), carried by the Republican candidate. Out of 77,832 votes cast, 24,880 went Democratic and 51,588 went Republican.
When did Johnson County, Indiana last vote Democratic?
The most recent presidential election in which Johnson County, Indiana voted Democratic was 1948.
How many people live in Johnson County, Indiana?
Johnson County, Indiana has a population of 166,315 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Johnson County, Indiana?
Median household income in Johnson County, Indiana is $90,454 — above the national median of $80,734. The Indiana state median is $71,957.
What is the political history of Johnson County, Indiana?
Akashic tracks 38 presidential elections in Johnson County, Indiana from 1876 to 2024. Of those, 11 went Democratic and 23 went Republican.