Harrison County's 2026 population is estimated at 39,912, reflecting a -0.08% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Harrison County is the 38th largest county in Indiana. The 2010 population was 39,328 and has grown 1.48% since 2010.
Data after 2023 is projected based on recent change
Overall: 43 years
Female: 43.5 years
Male: 42.2 years
There are 31,006 adults, (7,661 of whom are seniors) in Harrison County.
Female: 19,838 (49.8%)
Male: 20,021 (50.2%)
The racial composition of Harrison County includes 94.49% White, and smaller percentages for Two or more races, Black or African American, Native American, Asian, other race and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 37,664 | 94.49% |
| Two or more races | 1,062 | 2.66% |
| Black or African American | 338 | 0.85% |
| Native American | 321 | 0.81% |
| Asian | 269 | 0.67% |
| Other race | 205 | 0.51% |
Harrison County 's average per capita income is $51,315. Household income levels show a median of $74,475. The poverty rate stands at 7.17%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $102,293 | - |
| Families | $96,596 | $106,507 |
| Households | $74,475 | $89,405 |
| Non Families | $42,037 | $51,706 |
Average Income
Median Household Income
Poverty Rate
