Manassas: Demographics & People
Census counts 42,976 people in Manassas, in 14,203 households. Population grew 0.7% from 42,674 (2022) to 42,976 (2024). Median age 34.8 years. (3.0y younger than Virginia). Children under 18 are 27% of the population. Population is 44% Hispanic or Latino and 33% White (non-Hispanic). The community is highly diverse (Simpson index 0.63). 73% of households are family-led. County is losing 1,692 residents per year (2022-2023). County health: 35% adult obesity, 12% smoke.
- 3.0 people per household (vs Virginia avg 2.6).
- 27% non-family households (singles, roommates) (vs Virginia 35%).
- 60 dependents per 100 working-age (youth + seniors / 18-64) (vs Virginia 62).
Population & Trend
Population grew 0.7% from 42,674 (2022) to 42,976 (2024) — about 1.2× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~43,281 (extrapolated at 0.4%/yr trend). Census Bureau Vintage estimate: 43,692.
| Census data vintage | 2024 |
|---|---|
| Population | 42,772 people |
| Annual growth rate · Population change | 0.7% |
| Annual growth rate · Population (2022) | 42,674 |
| Annual growth rate · Population (2024) | 42,976 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | stable |
| Population | 42,976 people (vs Virginia 42,214) |
| Population Estimate | 43,692 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 34.8y is 4.1 years younger than the U.S. median (38.9y). Children under 18 make up 27% — above the U.S. share of ~22%.
| Age Summary · Median age | 34.8 years (vs Virginia 37.8y) |
|---|---|
| Age Summary · Children Pct | 26.9% |
| Age Summary · Character | young professional |
| Age Summary · Total Pop | 42,976 |
| Age Summary · Under 18 | 11,557 |
| Age Summary · 18 To 34 | 10,109.0× |
| Age Summary · 35 To 64 | 16,770.0× |
| Age Summary · 65 Plus | 4,540 |
| Population under 18 | 11,557 |
| Median age | 34.8 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 42,976 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.63 (0 = single group, 1 = perfectly even distribution); this is read as highly diverse.
| White residents | 21,561 |
|---|---|
| Black residents | 5,377 |
| Asian residents | 2,364 |
| Hispanic or Latino residents | 18,356 |
| Diversity Index · Diversity index (Simpson) | 63.2% |
| Diversity Index · Diversity label | highly diverse |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 45.2% |
| Asian population | 5.6% (at Virginia median) |
| Black population | 11.8% (vs Virginia 18.2%) |
| Hispanic or Latino population | 43.9% (vs Virginia 10.1%) |
| White (non-Hispanic) population | 33.3% (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). 3.0% are foreign-born — below the U.S. average of 13.9%. 32% have naturalized to U.S. citizenship.
| Residents born in this state | 17,225 |
|---|---|
| Residents born in another state | 10,525 |
| Share born in this state | 40.1% |
| Share born in another state | 59.9% |
| Native-born U.S. citizens | 24.5% |
| Foreign-born residents | 3.0% |
| Naturalized citizens | 32.4% |
| Total foreign-born residents | 12,537 |
| From Europe | 380 |
| From Asia | 21 |
| From Africa | 2,057 |
| From Latin America | 105 |
| Census Foreign Born · Caribbean | 8 |
Households & Family Composition
14,203 households. Averaging 3.0 people each — larger than the U.S. average of 2.5. 73% are family households — above the U.S. share of ~65%. Of 10,191 families, 33% are married couples with children.
| Children under 18 | 11,529 |
|---|---|
| Total families | 10,191 |
| Married couples with children | 3,321 |
| Single-parent households | 434 |
| Average household size | 3.03 |
| Women who gave birth (past year) | 9.8% |
| Grandparents living with grandchildren | 752 |
| Grandparents responsible for grandchildren | 294 |
| Family households | 10,339 households (vs Virginia 9,367) |
| Households that are families | 72.8% (vs Virginia 65.0%) |
| Total households | 14,203 households (at Virginia median) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 14.4% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 1,692 residents per year on net (IRS migration data).
| Moved within the county (past year) | 14.4% |
|---|---|
| Migration · People moving in (annual) | 43,552 |
| Migration · People moving out (annual) | 45,244 |
| Migration · Net migration (in − out) | -1,692 |
| 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 | 1,750 |
|---|---|
| Disability rate | 4.1% |
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. 69 residents live in group quarters (0.2% of population).
| Living in group quarters | 69 |
|---|
Other
| Congressional District · District | 1 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 51683 |
| Cdc Birth Rate · State Fips | 51 |
| Cdc Birth Rate · County Fips | 683 |
| Cdc Birth Rate · County | Manassas City |
| Cdc Birth Rate · Birth Rate | 39.9% |
| Cdc Birth Rate · Lower Ci | 34.80 |
| Cdc Birth Rate · Upper Ci | 45.60 |
| Cdc Mortality · Fips | 51683 |
| Cdc Mortality · County | Manassas city |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 1,840 |
| Cdc Vaccination · Fips | 51683 |
| Cdc Vaccination · County | Manassas city |
| Cdc Vaccination · Dose1 Pop Pct | 60.5% |
| Cdc Vaccination · Series Complete Pct | 48.8% |
| Cdc Vaccination · Booster Pct | 4.6% |
| Cdc Vaccination · Population 2019 | 41,085 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 10 |
| Family Score · Schools | 39 |
| Family Score · Childcare Centers | 33 |
| Family Score · Youth Sports Orgs | 2 |
| Family Score · Children Pct | 26.9% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 42,976, stable, young professional, affluent, mixed |
| Town Summary · Population | 42,976 people (vs Virginia 42,214) |
| Town Summary · County | Manassas city |
Sources: NCES school congressional district assignment · federal dataset cascade