Harrison County's 2026 population is estimated at 8,126, reflecting a -0.37% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Harrison County is the 98th largest county in Missouri. The 2010 population was 8,968 and has grown -9.39% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.8 years
Female: 43.2 years
Male: 40.3 years
There are 6,199 adults, (1,865 of whom are seniors) in Harrison County.
Female: 4,128 (50.4%)
Male: 4,062 (49.6%)
The racial composition of Harrison County includes 94.14% White, and smaller percentages for Asian, Black or African American, other race, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 7,710 | 94.14% |
| Two or more races | 276 | 3.37% |
| Asian | 99 | 1.21% |
| Black or African American | 64 | 0.78% |
| Other race | 28 | 0.34% |
| Native American | 13 | 0.16% |
Harrison County 's average per capita income is $36,433. Household income levels show a median of $54,367. The poverty rate stands at 19.56%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $83,350 | - |
| Families | $68,750 | $78,173 |
| Households | $54,367 | $66,587 |
| Non Families | $30,495 | $39,018 |
Average Income
Median Household Income
Poverty Rate
