2nd most populous of 133
With 497,003 residents in 2024, Prince William County ranks 2nd by population among Virginia's 133 counties and is home to 5.6% of the state's residents.

Prince William County has the 6th largest immigrant share in Virginia (26.3% foreign-born) and the 7th highest median household income ($131,402).
Prince William County is home to 497,003 people (2024 estimate) on 335 square miles of land. This page brings together official U.S. Census Bureau population estimates since 2000, the components of change—births, deaths and migration—American Community Survey indicators on income, housing, poverty and education, BEA economic accounts and BLS unemployment.
Pick an indicator to see its long-run evolution.
U.S. Census Bureau: intercensal estimates 2000–2009, Vintage 2020 (2010–2019) and Vintage 2024 (2020–2024), July 1.
| Indicator | Value | Year and source |
|---|---|---|
| Population estimate | 497,003 | 2024 · U.S. Census Bureau |
| Population, 2010 Census | 402,002 | 2010 · U.S. Census Bureau |
| Population, 2000 | 284,565 | July 1, 2000 · Census intercensal |
| Change since 2000 | +74.7% | 2000–2024 · Census |
| International migration | +5,137 | 2024 · Census Vintage 2024 |
| Domestic migration | −3,563 | 2024 · Census Vintage 2024 |
| Birth rate | 12.5 per 1,000 | 2024 · calculated |
| Death rate | 4.8 per 1,000 | 2024 · calculated |
| Population rank in Virginia | 2nd of 133 | 2024 · calculated |
| Median household income | $131,402 | ACS 2020–2024 5-year · official |
| Poverty rate | 6.2% | ACS 2020–2024 5-year · official |
| Bachelor’s degree or higher | 44.9% | Age 25+, ACS 2020–2024 5-year · official |
| Foreign-born residents | 26.3% | ACS 2020–2024 5-year · official |
| Median home value | $530,100 | ACS 2020–2024 5-year · official |
| Median gross rent | $2,067/month | ACS 2020–2024 5-year · official |
| Median age | 36.3 years | ACS 2020–2024 5-year · official |
| Households | 156,798 | ACS 2020–2024 5-year · official |
| Owner-occupied homes | 74.3% | ACS 2020–2024 5-year · official |
Comparable indicators for Prince William County, Virginia and the United States.
| Indicator | County | Virginia | U.S. | Reference |
|---|---|---|---|---|
| Population change 2020–2024 | +3.1% | +2.1% | +2.6% | Census Vintage 2024 |
| Birth rate (per 1,000) | 12.5 | 10.6 | 10.6 | 2024 |
| Death rate (per 1,000) | 4.8 | 8.9 | 9.1 | 2024 |
| Net migration rate (per 1,000) | 3.2 | 7.0 | 8.2 | 2024 |
| Population density (/mi²) | 1482.5 | 223.2 | 96.3 | 2024 |
| Median household income | $131,402 | $93,170 | $80,734 | ACS 2020–2024 5-year |
| Poverty rate | 6.2% | 9.9% | 12.5% | ACS 2020–2024 5-year |
| Bachelor’s degree or higher | 44.9% | 42.2% | 35.7% | Age 25+, ACS 2020–2024 5-year |
| Foreign-born residents | 26.3% | 13.1% | 14.1% | ACS 2020–2024 5-year |
| Median home value | $530,100 | $383,700 | $332,700 | ACS 2020–2024 5-year |
| Median gross rent | $2,067/month | $1,579/month | $1,413/month | ACS 2020–2024 5-year |
| Median age | 36.3 years | 39.0 years | 38.9 years | ACS 2020–2024 5-year |
| Owner-occupied homes | 74.3% | 67.3% | 65.2% | ACS 2020–2024 5-year |
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With 497,003 residents in 2024, Prince William County ranks 2nd by population among Virginia's 133 counties and is home to 5.6% of the state's residents.
Its population went from 284,565 in 2000 to 497,003 in 2024, a change of +74.7%, compared with +24.0% for Virginia as a whole.
In the year to July 2024 the county recorded 6,225 births and 2,392 deaths, so births outnumbered deaths by 3,833.
Annual Census estimates since 2000 put the county's highest population in 2024, at 497,003.
Prince William County has about 1482.5 residents per square mile of land, ranking 28th of 133 counties; Virginia averages 223.2.
With a median household income of $131,402 (ACS 2020–2024 5-year), the county ranks 7th of 133 Virginia counties; the state median is $93,170.