How many people live in Prince William County, VA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 497,000 people living in Prince William County, VA. That makes Prince William County the second-most populous county in Virginia. It is home to 5.6% of people living in the state.
497K
population of Prince William County, VA (2024)
5.6%
County share of the Virginia population (2024)
About 497,000 people lived in Prince William County, VA in 2024.
Population estimates, 2000–2024
What are Prince William County, VA’s age demographics?
About 60,900 Prince William County, VA residents are aged 65 and older in 2024. That represents 12.3% of its population. For comparison, the age group represents 17.8% of Virginia’s population and 18% in the US overall.
Another 128,400 Prince William County residents, or 25.8% of the population, were children under 18. For comparison, the age group represents 21.6% of Virginia’s population and 21.6% in the US overall.
A lower share of Prince William County, VA's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Prince William County, VA’s racial and ethnic demographics?
Hispanic residents make up 26.8% of the Prince William County, VA population, higher than the national share of 20%. Prince William County, VA also has a larger share of people identifying as non-Hispanic Black or African American (20.1%) than the US overall (12.6%).
In contrast, Prince William County’s non-Hispanic white population accounts for 37.4%, below the 57.5% nationwide, and the non-Hispanic American Indian and Alaska Native population makes up 0.17% of the county, compared with 0.72% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Prince William County, VA has a higher share of a Hispanic population than Virginia as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Prince William County, VA is Dumfries with about 6,000 residents in 2024.
Cities and towns in Prince William County, VA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Dumfries | 5,978 |
| 2. | Haymarket | 1,594 |
| 3. | Occoquan | 1,063 |
| 4. | Quantico | 591 |
| 5. | Balance of Prince William County | 487,777 |
Keep exploring
Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
