Statistics for Prince William County
Latest official figures for Prince William County, each linked to its source.
Demography
| Population | 502,966 persons | 2025 |
| Median age | 36.3 years | 2024 |
| Live births, July to June | 5,992 count | 2025 |
| Deaths, July to June | 2,472 count | 2025 |
| Crude birth rate, July to June | 11.97 per 1,000 inhabitants | 2025 |
| Crude death rate, July to June | 4.94 per 1,000 inhabitants | 2025 |
Labor market
| Unemployment rate | 3.4 % | 2026-08 |
Income and living conditions
| Poverty rate (US official measure) | 6.6 % | 2024 |
| Median household income | 131,402 USD | 2024 |