Prince William County: Demographics & People
488,880 people call Prince William County home, in 156,798 households. Median age 36.3 years. (1.5y younger than Virginia). Population is 26% Hispanic or Latino and 20% Black. County is losing 8,300 residents per year (2022-2023). County health: 36% adult obesity, 12% smoke.
- 3.1 people per household (vs Virginia avg 2.6).
- 61 dependents per 100 working-age (youth + seniors / 18-64) (vs Virginia 62).
Population & Trend
Current population 488,880; figures track the most recent Census ACS 5-year estimates.
| Population | 488,880 people (vs Virginia 42,214) |
|---|---|
| Total Town Population | 407,863 people |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Age Distribution
Median age 36.3y is 2.6 years younger than the U.S. median (38.9y).
| Age Summary · Total Pop | 488,880 |
|---|---|
| Age Summary · Under 18 | 129,142 |
| Age Summary · 18 To 34 | 106,029.0× |
| Age Summary · 35 To 64 | 198,431.0× |
| Age Summary · 65 Plus | 55,278 |
| Age Summary · Pct Under 18 | 26.4% |
| Age Summary · Pct 18 To 34 | 21.7% |
| Age Summary · Pct 35 To 64 | 40.6% |
| Median age | 36.3 years (vs Virginia 37.8y) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 488,880 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| Census Demographics · Total Population | 488,880 people |
|---|---|
| White residents | 211,371 |
| Black residents | 97,931 |
| Asian residents | 48,981 |
| Census Demographics · Aian | 3,271 |
| Census Demographics · Nhpi | 390 |
| Census Demographics · Other Race | 48,816 |
| Census Demographics · Two Or More Races | 78,120 |
| Diversity Index | 72.7% |
| Asian population | 10.0% (vs Virginia 5.6%) |
| Black population | 20.0% (vs Virginia 18.2%) |
| Hispanic or Latino population | 26.1% (vs Virginia 10.1%) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 14.3% are foreign-born — near the U.S. average of 13.9%.
| Census Citizenship · Total | 488,880 |
|---|---|
| Census Citizenship · Native | 360,346 |
| Residents born in this state | 177,745 |
| Residents born in another state | 166,852 |
| Census Citizenship · Foreign Born | 69,859 |
| Census Citizenship · Naturalized | 24,551 |
| Census Citizenship · Non Citizen | 15,749 |
| Foreign-born residents | 14.3% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Households & Family Composition
156,798 households.
| Family households | 118,975 households (vs Virginia 9,367) |
|---|---|
| Total households | 156,798 households (vs Virginia 14,324) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Residential Stability & Migration
How long residents have lived here and where they came from. The surrounding county is losing 8,300 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 493,472 |
|---|---|
| Migration · People moving out (annual) | 501,772 |
| Migration · Net migration (in − out) | -8,300 |
| Migration · Year | 2022-2023 |
Sources: IRS SOI Migration 2022-2023
Disability
Census ACS measures self-reported functional limitations — vision, hearing, mobility, cognitive, self-care, or independent-living. The U.S. baseline disability rate is about 12–13%; rates trend higher with median age.
| Census Disability · Total Pop | 480,514 |
|---|---|
| With Disability | 42,792 |
| Pct With Disability | 8.9% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Group Quarters
Group quarters are non-household living arrangements counted by the Census — college dormitories, nursing homes, military barracks, group homes, correctional facilities, and similar institutional or shared housing. 0 residents live in group quarters.
| Census Group Quarters · Total | 4,003 |
|---|
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Other
| Census Mobility · Total | 483,447 |
|---|---|
| Census Mobility · Same House | 429,260 |
| Census Mobility · Same County | 20,954 |
| Census Mobility · Diff County Same State | 19,881 |
| Census Mobility · Diff State | 9,387 |
| Census Mobility · From Abroad | 3,965 |
| Census Mobility · Moved Total | 54,187 |
| Census Mobility · Pct Moved In Year | 11.2% |
| Pct White | 43.2% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29