Prince William County's 2026 population is estimated at 507,853, reflecting a 1.08% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Prince William County is the 2nd largest county in Virginia. The 2010 population was 406,183 and has grown 25.03% since 2010.
Data after 2023 is projected based on recent change
Overall: 36.3 years
Female: 37 years
Male: 35.6 years
There are 359,738 adults, (55,278 of whom are seniors) in Prince William County.
Female: 243,308 (49.8%)
Male: 245,572 (50.2%)
The racial composition of Prince William County includes 43.24% White, 20.03% Black or African American, 10.02% Asian, 9.99% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 211,371 | 43.24% |
| Black or African American | 97,931 | 20.03% |
| Two or more races | 78,120 | 15.98% |
| Asian | 48,981 | 10.02% |
| Other race | 48,816 | 9.99% |
| Native American | 3,271 | 0.67% |
| Native Hawaiian or Pacific Islander | 390 | 0.08% |
Prince William County 's average per capita income is $68,805. Household income levels show a median of $131,402. The poverty rate stands at 6.19%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $166,253 | $189,094 |
| Families | $146,895 | $170,586 |
| Households | $131,402 | $157,635 |
| Non Families | $86,575 | $103,282 |
Average Income
Median Household Income
Poverty Rate
