Harrison County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 38th-largest in Indiana
The population of Harrison County, Indiana is 39,785 as of the 2023 American Community Survey, making it the 38th-largest county in Indiana. The median household income is $72,468, the median home value is $219,200, and the median age is 43.0.
The population of Harrison County has grown 1.7% since 2010 (39,328 → 39,978), a +0.12% annualized rate.
39,785
Population
+0.12%
Annual growth
82
People / sq mi
$72,468
Median Income
$219,200
Median Home Value
Harrison County covers 484 sq mi of land at 82.2 people per square mile.
About Harrison County, IN
Homeownership is the standout figure in Harrison County: 84.4% of homes are owner-occupied, higher than the national rate. Harrison County is a county in Indiana with a population of 39,785. It ranks #38 among counties in Indiana by population.
Median household income is $72,468, below the US median of $78,538. The poverty rate, 5.7%, is on the lower side for US counties and below the national 12.4%. Homes carry a median value of $219,200, with typical rent around $861.
Degree attainment is mid-range for US counties: 22.0% of adults hold a four-year degree, below the national 35.0%. About 8.5% of the workforce is home-based, below the national 14.0%, and the average commute runs about 31 minutes each way.
The ownership rate anchors the housing story in Harrison County, and tends to move with the age structure and home-value figures above.
Harrison County Population History (2010-2024)
The county of Harrison County had a population of 39,328 in 2010 and 39,978 in 2024, a 1.7% growth over 14 years. The peak was 40,552 in 2019. Average annual growth rate: 0.12%.
39,978
Population (2024)
39,328
Population (2010)
40,552
Peak (2019)
0.12%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 39,328 |
| 2011 | 39,187 |
| 2012 | 39,014 |
| 2013 | 39,002 |
| 2014 | 39,175 |
| 2015 | 39,537 |
| 2016 | 39,669 |
| 2017 | 39,797 |
| 2018 | 40,258 |
| 2019 | 40,552 |
| 2020 | 39,673 |
| 2021 | 39,808 |
| 2022 | 39,823 |
| 2023 | 40,011 |
| 2024 | 39,978 |
Race & Ethnicity
| White | 95.6% |
| Black or African American | 0.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.6% |
| Two or More Races | 0.0% |
Age & Sex
43.0
Median Age
49.7%
Female
50.3%
Male
18.8%
Age 65+
Age Distribution
Children (under 15): 18.3% · Seniors (65+): 18.8%
Income & Poverty
| Median household income | $72,468+$2,417 vs state |
| Mean household income | $90,148 |
| Per-capita income | $35,333 |
| Poverty rate | 5.7%-2.7% vs state |
| Unemployment rate | 2.3% |
| Employment-to-population | 58.4% |
Top Industries by Employment
The largest employment sector in Harrison County is professional & business services, accounting for 25.1% of workers.
How residents commute
0.0%
Drive alone
0.9%
Carpool
79.9%
Public transit
8.5%
Work from home
31.2 min
Avg commute
Housing
$219,200+$17,600 vs state
Median home value
$861
Median rent
84.4%
Homeownership rate
16,842
Total housing units
90.0%
Occupied
10.0%
Vacant
15.6%
Renter-occupied
Social & access
94.5%
With health insurance
90.0%
With broadband internet
40.2%
Foreign-born
8.5%
Veterans (18+)
15.4%
With a disability
97.5%
Speak language other than English at home
Education
91.8%
High School+
22.0%
Bachelor's+
Largest cities in Indiana
Other counties in Indiana
Part of Indiana
Metro areas in Indiana
County rankings
Frequently Asked Questions
Harrison County, Indiana has a population of 39,785 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 38th-largest county in Indiana. Population density is 82 people per square mile.
The population of Harrison County has grown 1.7% since 2010 (39,328 → 39,978), a +0.12% annualized rate.
The median household income in Harrison County, Indiana is $72,468, with mean (average) household income of $90,148 and per-capita income of $35,333. 5.7% of residents live below the federal poverty level.
In Harrison County, the largest racial and ethnic groups are White (95.6%), Hispanic or Latino (1.6%), Black or African American (0.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Harrison County, Indiana is 43.0 years. Residents are 49.7% female and 50.3% male.
The median home value in Harrison County is $219,200 and median monthly rent is $861. 84.4% of occupied housing units are owner-occupied. The county has 16,842 total housing units, 10.0% of which are vacant.
The largest employment sector in Harrison County, Indiana is professional, scientific, and management services, employing 25.1% of workers. The unemployment rate is 2.3%.
Indianapolis is among the largest cities associated with Harrison County, Indiana, with a population of 882,043.
Harrison County, IN Climate
Harrison County, IN has an average annual temperature of 12.7°C (55°F) and receives about 1158 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
12.7°C
Avg Temp
1158
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -1° / 31° | 85 mm |
| February | 2° / 35° | 83 mm |
| March | 7° / 45° | 113 mm |
| April | 13° / 55° | 110 mm |
| May | 18° / 64° | 116 mm |
| June | 22° / 72° | 100 mm |
| July | 25° / 76° | 113 mm |
| August | 24° / 74° | 96 mm |
| September | 20° / 68° | 79 mm |
| October | 13° / 56° | 70 mm |
| November | 8° / 46° | 96 mm |
| December | 2° / 36° | 97 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Harrison County, IN
The most comfortable months to visit Harrison County, IN are typically September, June and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 31°C high). The coldest is January (near -6°C low). May is usually the wettest month.
Where to stay near Harrison County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.