St. Louis County: Demographics & People
200,123 people call St. Louis County home. Median age 41.2 years. (2.2y older than Minnesota). Population is 2% Hispanic or Latino and 2% Black. County is gaining 105 residents per year (2022-2023). County health: 35% adult obesity, 18% smoke.
Population & Trend
Current population 200,123; figures track the most recent Census ACS 5-year estimates.
| Population | 200,123 people |
|---|---|
| Total Town Population | 150,695 people |
Age Distribution
Median age 41.2y is 2.3 years older than the U.S. median (38.9y).
| Age Summary · Total Pop | 200,123 |
|---|---|
| Age Summary · Under 18 | 37,130 |
| Age Summary · 18 To 34 | 47,505.0× |
| Age Summary · 35 To 64 | 72,737.0× |
| Age Summary · 65 Plus | 42,751 |
| Age Summary · Pct Under 18 | 18.6% |
| Age Summary · Pct 18 To 34 | 23.7% |
| Age Summary · Pct 35 To 64 | 36.4% |
| Median age | 41.2 years (vs Minnesota 39.0y) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Race, Ethnicity & Diversity
Of 200,123 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| Census Demographics · Total Population | 200,123 people |
|---|---|
| White residents | 180,247 |
| Black residents | 3,301 |
| Asian residents | 2,076 |
| Census Demographics · Aian | 3,129 |
| Census Demographics · Nhpi | 12 |
| Census Demographics · Other Race | 1,285 |
| Census Demographics · Two Or More Races | 10,073 |
| Diversity Index | 18.6% |
| Asian population | 1.0% |
| Black population | 1.6% |
| Hispanic or Latino population | 1.9% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Census Citizenship · Total | 200,123 |
|---|---|
| Census Citizenship · Native | 196,266 |
| Residents born in this state | 151,021 |
| Residents born in another state | 43,992 |
| Census Citizenship · Foreign Born | 6,245 |
| Census Citizenship · Naturalized | 8,850 |
| Census Citizenship · Non Citizen | 1,253 |
| Foreign-born residents | 3.1% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Residential Stability & Migration
How long residents have lived here and where they came from. The surrounding county is gaining 105 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 172,419 |
|---|---|
| Migration · People moving out (annual) | 172,314 |
| Migration · Net migration (in − out) | 105 |
| 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 | 197,077 |
|---|---|
| With Disability | 30,827 |
| Pct With Disability | 15.6% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
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 | 8,157 |
|---|
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Other
| Census Mobility · Total | 198,331 |
|---|---|
| Census Mobility · Same House | 171,049 |
| Census Mobility · Same County | 14,362 |
| Census Mobility · Diff County Same State | 7,881 |
| Census Mobility · Diff State | 4,732 |
| Census Mobility · From Abroad | 307 |
| Census Mobility · Moved Total | 27,282 |
| Census Mobility · Pct Moved In Year | 13.8% |
| Pct White | 90.1% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28