Harrison County's 2026 population is estimated at 218,402, reflecting a 1.08% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Harrison County is the largest county in Mississippi. The 2010 population was 187,868 and has grown 16.25% since 2010.
Data after 2023 is projected based on recent change
Overall: 38.5 years
Female: 39.6 years
Male: 37.1 years
There are 161,102 adults, (35,050 of whom are seniors) in Harrison County.
Female: 108,038 (51.2%)
Male: 102,853 (48.8%)
The racial composition of Harrison County includes 62.15% White, 23.54% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 131,066 | 62.15% |
| Black or African American | 49,653 | 23.54% |
| Two or more races | 18,878 | 8.95% |
| Asian | 5,276 | 2.5% |
| Other race | 5,160 | 2.45% |
| Native American | 687 | 0.33% |
| Native Hawaiian or Pacific Islander | 171 | 0.08% |
Harrison County 's average per capita income is $42,192. Household income levels show a median of $59,479. The poverty rate stands at 17.09%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $94,337 | $115,825 |
| Families | $73,676 | $94,241 |
| Households | $59,479 | $80,923 |
| Non Families | $39,825 | $53,071 |
Average Income
Median Household Income
Poverty Rate