Montgomery County: Demographics & People
About 99,101 people live in Montgomery County, in 36,961 households. Median age 30.2 years. (7.6y younger than Virginia). Population is 6% Asian and 5% Hispanic or Latino. County is losing 1,461 residents per year (2022-2023). County health: 32% adult obesity, 16% smoke.
- 2.7 people per household (vs Virginia avg 2.6).
- 42 dependents per 100 working-age (youth + seniors / 18-64) (vs Virginia 62).
Population & Trend
Current population 99,101; figures track the most recent Census ACS 5-year estimates.
| Population | 99,101 people (vs Virginia 42,214) |
|---|---|
| Total Town Population | 78,126 people |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Age Distribution
Median age 30.2y is 8.7 years younger than the U.S. median (38.9y).
| Age Summary · Total Pop | 99,101 |
|---|---|
| Age Summary · Under 18 | 15,115 |
| Age Summary · 18 To 34 | 39,987.0× |
| Age Summary · 35 To 64 | 30,041.0× |
| Age Summary · 65 Plus | 13,958 |
| Age Summary · Pct Under 18 | 15.2% |
| Age Summary · Pct 18 To 34 | 40.4% |
| Age Summary · Pct 35 To 64 | 30.3% |
| Median age | 30.2 years (vs Virginia 37.8y) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 99,101 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| Census Demographics · Total Population | 99,101 people |
|---|---|
| White residents | 81,034 |
| Black residents | 3,878 |
| Asian residents | 6,434 |
| Census Demographics · Aian | 189 |
| Census Demographics · Nhpi | 164 |
| Census Demographics · Other Race | 2,051 |
| Census Demographics · Two Or More Races | 5,351 |
| Diversity Index | 32.2% |
| Asian population | 6.5% (vs Virginia 5.6%) |
| Black population | 3.9% (vs Virginia 18.2%) |
| Hispanic or Latino population | 4.6% (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). 15.3% are foreign-born — above the U.S. average of 13.9%.
| Census Citizenship · Total | 99,101 |
|---|---|
| Census Citizenship · Native | 89,642 |
| Residents born in this state | 54,057 |
| Residents born in another state | 34,329 |
| Census Citizenship · Foreign Born | 15,194 |
| Census Citizenship · Naturalized | 3,797 |
| Census Citizenship · Non Citizen | 1,256 |
| Foreign-born residents | 15.3% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Households & Family Composition
36,961 households.
| Family households | 19,630 households (vs Virginia 9,367) |
|---|---|
| Total households | 36,961 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 1,461 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 71,381 |
|---|---|
| Migration · People moving out (annual) | 72,842 |
| Migration · Net migration (in − out) | -1,461 |
| 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 | 98,294 |
|---|---|
| With Disability | 10,376 |
| Pct With Disability | 10.6% |
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 | 10,789 |
|---|
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Other
| Census Mobility · Total | 98,474 |
|---|---|
| Census Mobility · Same House | 77,297 |
| Census Mobility · Same County | 8,668 |
| Census Mobility · Diff County Same State | 7,601 |
| Census Mobility · Diff State | 4,111 |
| Census Mobility · From Abroad | 797 |
| Census Mobility · Moved Total | 21,177 |
| Census Mobility · Pct Moved In Year | 21.5% |
| Pct White | 81.8% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29