Prince William County, Virginia Demographics 2026

Population Overview

Prince William County is located in Virginia with a total population of 484,625. It is the 2nd most populous county out of 133 in Virginia.

Age Demographics

The median age in Prince William County is 36.0 years. This is 7% lower than the state median of 38.8 years.

Economy, Income & Housing

The median household income in Prince William County is $128,873. This is 42% higher than the state median of $90,974. Compared to the national median of $78,538, household income here is 64% higher. The poverty rate stands at 6.1%. This is 38% lower than the state poverty rate of 9.9%. The unemployment rate is 4.5%. This is 4% higher than the state rate of 4.3%. The median home value is $500,600. Housing costs are 39% higher than the state median of $360,700. The home-value-to-income ratio is 3.9x. 74.4% of occupied housing units are owner-occupied. This homeownership rate is 11% higher than the state average of 67.2%.

Race & Ethnicity

Prince William County is a highly diverse community where no single racial or ethnic group constitutes a majority of the population. Hispanic or Latino residents account for 25.7%. The Hispanic or Latino population is significantly higher than the state average (25.7% vs 10.7%).

Education

44.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 7% higher than the state rate of 41.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.2%. Notably, 18.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.