Quantico: Demographics & People
Quantico is home to 578 people, in 310 households. Population shrank 1.5% from 587 (2022) to 578 (2024). Median age 45.9 years. (9.6y older than Prince William County; 8.1y older than Virginia). Children under 18 are 14% of the population. Population is 48% White (non-Hispanic) and 21% Black. The community is highly diverse (Simpson index 0.65). 34% of households are family-led. County is losing 8,300 residents per year (2022-2023). County health: 33% adult obesity, 12% smoke.
- 1.9 people per household (vs Virginia avg 2.6).
- 66% non-family households (singles, roommates) (vs Virginia 35%).
- 34 dependents per 100 working-age (youth + seniors / 18-64) (vs Virginia 62).
Population & Trend
Population shrank 1.5% from 587 (2022) to 578 (2024). Estimated 2026 population: ~569 (extrapolated at -0.8%/yr trend). Census Bureau Vintage estimate: 557.
| Census data vintage | 2024 |
|---|---|
| Population | 482,204 people |
| Annual growth rate · Population change | -1.5% |
| Annual growth rate · Population (2022) | 587 |
| Annual growth rate · Population (2024) | 578 |
| Annual growth rate · Trend category | declining |
| Population | 578 people (vs Virginia 42,214) |
| Population Estimate | 557 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 45.9y is 7.0 years older than the U.S. median (38.9y). Children under 18 make up 14% — below the U.S. share of ~22%.
| Age Summary · Median age | 45.9 years (vs Virginia 37.8y) |
|---|---|
| Age Summary · Children Pct | 13.8% |
| Age Summary · Character | established |
| Age Summary · Total Pop | 578 |
| Age Summary · Under 18 | 80 |
| Age Summary · 18 To 34 | 120.0× |
| Age Summary · 35 To 64 | 310.0× |
| Age Summary · 65 Plus | 68 |
| Population under 18 | 80 |
| Median age | 45.9 years (vs Virginia 37.8y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 578 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.65 (0 = single group, 1 = perfectly even distribution); this is read as highly diverse.
| White residents | 275 |
|---|---|
| Black residents | 151 |
| Asian residents | 39 |
| Hispanic or Latino residents | 96 |
| Diversity Index · Diversity index (Simpson) | 65.3% |
| Diversity Index · Diversity label | highly diverse |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 49.0% |
| Asian population | 8.5% (vs Virginia 5.6%) |
| Black population | 21.1% (vs Virginia 18.2%) |
| Hispanic or Latino population | 12.8% (vs Virginia 10.1%) |
| White (non-Hispanic) population | 48.1% (vs Virginia 53.8%) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Ancestry
Self-reported ancestry from Census ACS — what residents report as their ethnic origin, separate from race. Counts can exceed population because people can list multiple ancestries.
Top (8)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 0.5% are foreign-born — below the U.S. average of 13.9%. 17% have naturalized to U.S. citizenship.
| Residents born in this state | 129 |
|---|---|
| Residents born in another state | 348 |
| Share born in this state | 22.3% |
| Share born in another state | 77.7% |
| Native-born U.S. citizens | 60.2% |
| Foreign-born residents | 0.5% |
| Naturalized citizens | 17.0% |
| Total foreign-born residents | 47 |
| From Europe | 9 |
| From Africa | 25 |
Households & Family Composition
310 households. Averaging 1.8 people each — smaller than the U.S. average of 2.5. 34% are family households — below the U.S. share of ~65%. Of 110 families, 45% are married couples with children.
| Children under 18 | 101 |
|---|---|
| Total families | 110 |
| Married couples with children | 50 |
| Average household size | 1.77 |
| Women who gave birth (past year) | 25.6% |
| Grandparents living with grandchildren | 8,337 |
| Grandparents responsible for grandchildren | 3,891 |
| Family households | 105 households (vs Virginia 9,367) |
| Households that are families | 33.9% (vs Virginia 65.0%) |
| Total households | 310 households (vs Virginia 14,324) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 23.4% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 8,300 residents per year on net (IRS migration data).
| Moved within the county (past year) | 23.4% |
|---|---|
| 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 2021-2022 · Refreshed 2026-04-12
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.
| Residents with a disability | 30 |
|---|---|
| Disability rate | 5.7% |
Other
| Congressional District · District | 7 |
|---|---|
| Congressional District · Formatted | VA-07 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 51153 |
| Cdc Birth Rate · State Fips | 51 |
| Cdc Birth Rate · County Fips | 153 |
| Cdc Birth Rate · County | Prince William |
| Cdc Birth Rate · Birth Rate | 12.8% |
| Cdc Birth Rate · Lower Ci | 11.90 |
| Cdc Birth Rate · Upper Ci | 13.70 |
| Cdc Mortality · Fips | 51153 |
| Cdc Mortality · County | Prince William County |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 6,770 |
| Cdc Vaccination · Fips | 51153 |
| Cdc Vaccination · County | Prince William County |
| Cdc Vaccination · Dose1 Pop Pct | 91.8% |
| Cdc Vaccination · Series Complete Pct | 76.3% |
| Cdc Vaccination · Booster Pct | 46.6% |
| Cdc Vaccination · Population 2019 | 470,335 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 13.8% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 578, declining, established, middle-class, mixed |
| Town Summary · Population | 578 people (vs Virginia 42,214) |
| Town Summary · County | Prince William County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade