Westmoreland County: Demographics & People
Census counts 18,826 people in Westmoreland County, in 8,149 households. Median age 47.7 years. (9.9y older than Virginia). Population is 24% Black and 6% Hispanic or Latino. County is gaining 1,040 residents per year (2022-2023). County health: 39% adult obesity, 20% smoke.
- 2.3 people per household (vs Virginia avg 2.6).
- 80 dependents per 100 working-age (youth + seniors / 18-64) (vs Virginia 62).
Population & Trend
Current population 18,826; figures track the most recent Census ACS 5-year estimates.
| Population | 18,826 people (vs Virginia 42,214) |
|---|---|
| Total Town Population | 4,241 people |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Age Distribution
Median age 47.7y is 8.8 years older than the U.S. median (38.9y).
| Age Summary · Total Pop | 18,826 |
|---|---|
| Age Summary · Under 18 | 3,361 |
| Age Summary · 18 To 34 | 3,561.0× |
| Age Summary · 35 To 64 | 6,887.0× |
| Age Summary · 65 Plus | 5,017 |
| Age Summary · Pct Under 18 | 17.9% |
| Age Summary · Pct 18 To 34 | 18.9% |
| Age Summary · Pct 35 To 64 | 36.6% |
| Median age | 47.7 years (vs Virginia 37.8y) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 18,826 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| Census Demographics · Total Population | 18,826 people |
|---|---|
| White residents | 11,820 |
| Black residents | 4,424 |
| Asian residents | 185 |
| Census Demographics · Aian | 16 |
| Census Demographics · Other Race | 831 |
| Census Demographics · Two Or More Races | 1,550 |
| Hispanic or Latino residents | 1,210 |
| Diversity Index | 54.2% |
| Asian population | 1.0% (vs Virginia 5.6%) |
| Black population | 23.5% (vs Virginia 18.2%) |
| Hispanic or Latino population | 6.4% (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). 21.4% are foreign-born — above the U.S. average of 13.9%.
| Census Citizenship · Total | 18,826 |
|---|---|
| Census Citizenship · Native | 17,927 |
| Residents born in this state | 10,628 |
| Residents born in another state | 7,111 |
| Census Citizenship · Foreign Born | 4,036 |
| Census Citizenship · Naturalized | 952 |
| Census Citizenship · Non Citizen | 188 |
| Foreign-born residents | 21.4% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Households & Family Composition
8,149 households.
| Family households | 4,846 households (vs Virginia 9,367) |
|---|---|
| Total households | 8,149 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 gaining 1,040 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 18,141 |
|---|---|
| Migration · People moving out (annual) | 17,101 |
| Migration · Net migration (in − out) | 1,040 |
| Migration · Population growing | Yes |
| 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 | 18,587 |
|---|---|
| With Disability | 3,261 |
| Pct With Disability | 17.5% |
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 | 110 |
|---|
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Other
| Census Mobility · Total | 18,481 |
|---|---|
| Census Mobility · Same House | 16,959 |
| Census Mobility · Same County | 502 |
| Census Mobility · Diff County Same State | 665 |
| Census Mobility · Diff State | 318 |
| Census Mobility · From Abroad | 37 |
| Census Mobility · Moved Total | 1,522 |
| Census Mobility · Pct Moved In Year | 8.2% |
| Pct White | 62.8% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29