Arlington County: Demographics & People
236,254 people call Arlington County home, in 112,027 households. Median age 35.3 years. (2.5y younger than Virginia). Population is 16% Hispanic or Latino and 11% Asian. County is losing 5,365 residents per year (2022-2023). County health: 24% adult obesity, 8% smoke.
- 2.1 people per household (vs Virginia avg 2.6).
- 43 dependents per 100 working-age (youth + seniors / 18-64) (vs Virginia 62).
Population & Trend
Current population 236,254; figures track the most recent Census ACS 5-year estimates.
| Population | 236,254 people (vs Virginia 42,214) |
|---|---|
| Total Town Population | 236,254 people |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Age Distribution
Median age 35.3y is 3.6 years younger than the U.S. median (38.9y).
| Age Summary · Total Pop | 236,254 |
|---|---|
| Age Summary · Under 18 | 42,601 |
| Age Summary · 18 To 34 | 73,196.0× |
| Age Summary · 35 To 64 | 92,334.0× |
| Age Summary · 65 Plus | 28,123 |
| Age Summary · Pct Under 18 | 18.0% |
| Age Summary · Pct 18 To 34 | 31.0% |
| Age Summary · Pct 35 To 64 | 39.1% |
| Median age | 35.3 years (vs Virginia 37.8y) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 236,254 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| Census Demographics · Total Population | 236,254 people |
|---|---|
| White residents | 142,640 |
| Black residents | 22,327 |
| Asian residents | 24,923 |
| Census Demographics · Aian | 1,476 |
| Census Demographics · Nhpi | 109 |
| Census Demographics · Other Race | 13,248 |
| Census Demographics · Two Or More Races | 31,531 |
| Diversity Index | 59.4% |
| Asian population | 10.6% (vs Virginia 5.6%) |
| Black population | 9.4% (vs Virginia 18.2%) |
| Hispanic or Latino population | 15.9% (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). 20.6% are foreign-born — above the U.S. average of 13.9%.
| Census Citizenship · Total | 236,254 |
|---|---|
| Census Citizenship · Native | 183,230 |
| Residents born in this state | 51,539 |
| Residents born in another state | 124,082 |
| Census Citizenship · Foreign Born | 48,744 |
| Census Citizenship · Naturalized | 15,452 |
| Census Citizenship · Non Citizen | 7,609 |
| Foreign-born residents | 20.6% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Households & Family Composition
112,027 households.
| Family households | 49,498 households (vs Virginia 9,367) |
|---|---|
| Total households | 112,027 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 5,365 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 237,753 |
|---|---|
| Migration · People moving out (annual) | 243,118 |
| Migration · Net migration (in − out) | -5,365 |
| 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 | 231,799 |
|---|---|
| With Disability | 15,607 |
| Pct With Disability | 6.7% |
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 | 3,053 |
|---|
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Other
| Census Mobility · Total | 233,901 |
|---|---|
| Census Mobility · Same House | 184,029 |
| Census Mobility · Same County | 16,618 |
| Census Mobility · Diff County Same State | 9,036 |
| Census Mobility · Diff State | 18,382 |
| Census Mobility · From Abroad | 5,836 |
| Census Mobility · Moved Total | 49,872 |
| Census Mobility · Pct Moved In Year | 21.3% |
| Pct White | 60.4% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29