Data as of November 4, 2026 · refreshed automatically from the official Indiana voter file
Harrison County, Indiana has 30,204 active registered voters across 45 precincts, as of November 2026.
Party registration
Indiana doesn't register voters by party, so there's no party breakdown to show. Party lean is usually inferred from primary participation; that data is in the voter file and available inside Motion51.
How Harrison County voted for president
Election results are public records.
Harrison County at a glance.
Harrison County had an estimated 39,978 residents in July 2024, the 38th most populous of Indiana's 92 counties, up 0.8% since the 2020 census. Of those, 31,291 are 18 or older, the voting-age population, and 20.5% are 65 or older. Its 30,204 active registered voters equal about 96.5% of that voting-age population.
It covers 484 square miles of land (83 people per square mile). The largest cities and towns are Corydon (3,153), Lanesville (939), Palmyra (905), Milltown (part) (380) and Elizabeth (201). The American Community Survey (2020-2024) puts it at a median age of 43.0, a median household income of $74,475, 21.7% of adults 25 and older holding a bachelor's degree or higher and 83.6% of occupied homes owned by the people living in them.
In 2024, 20,440 votes were cast for president, about 65.3% of the voting-age population; the Democratic ticket took 25.6% and the Republican ticket 72.6%. The two-party margin moved from R+18.0 in 2008 to R+47.0 in 2024.
- Population (2024 estimate)
- 39,978
- Population (2020 census base)
- 39,651
- Voting-age population (18+)
- 31,291
- Active voters per 100 adults
- 96.5
- Residents 65 and older
- 20.5%
- People per square mile
- 83
- Land area
- 484 sq mi
- Median age
- 43.0
- Median household income
- $74,475
- Adults 25+ with a bachelor's degree
- 21.7%
- Owner-occupied homes
- 83.6%
Largest cities and towns
- Corydon 3,153
- Lanesville 939
- Palmyra 905
- Milltown (part) 380
- Elizabeth 201
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 25.6% | 72.6% | R+47.0 | 20,440 |
| 2020 | 26.4% | 72.0% | R+45.6 | 20,236 |
| 2016 | 25.8% | 70.1% | R+44.3 | 18,528 |
| 2012 | 37.4% | 60.2% | R+22.8 | 17,646 |
| 2008 | 40.3% | 58.3% | R+18.0 | 18,091 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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