St. Charles Parish: Demographics & People
About 51,396 people live in St. Charles Parish. Median age 39.7 years. (1.8y older than Louisiana). Population is 22% Black and 8% Hispanic or Latino. County is losing 1,158 residents per year (2022-2023). County health: 37% adult obesity, 17% smoke.
Population & Trend
Current population 51,396; figures track the most recent Census ACS 5-year estimates.
| Population | 51,396 people |
|---|---|
| Total Town Population | 50,310 people |
Age Distribution
Median age 39.7y is 0.8 years older than the U.S. median (38.9y).
| Age Summary · Total Pop | 51,396 |
|---|---|
| Age Summary · Under 18 | 12,384 |
| Age Summary · 18 To 34 | 10,212.0× |
| Age Summary · 35 To 64 | 20,819.0× |
| Age Summary · 65 Plus | 7,981 |
| Age Summary · Pct Under 18 | 24.1% |
| Age Summary · Pct 18 To 34 | 19.9% |
| Age Summary · Pct 35 To 64 | 40.5% |
| Median age | 39.7 years (vs Louisiana 37.9y) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Race, Ethnicity & Diversity
Of 51,396 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| Census Demographics · Total Population | 51,396 people |
|---|---|
| White residents | 32,857 |
| Black residents | 11,356 |
| Asian residents | 429 |
| Census Demographics · Aian | 486 |
| Census Demographics · Nhpi | 8 |
| Census Demographics · Other Race | 2,120 |
| Census Demographics · Two Or More Races | 4,140 |
| Diversity Index | 53.4% |
| Asian population | 0.8% |
| Black population | 22.1% |
| Hispanic or Latino population | 8.2% |
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 | 51,396 |
|---|---|
| Census Citizenship · Native | 48,904 |
| Residents born in this state | 42,106 |
| Residents born in another state | 6,491 |
| Census Citizenship · Foreign Born | 3,526 |
| Census Citizenship · Naturalized | 794 |
| Census Citizenship · Non Citizen | 307 |
| Foreign-born residents | 6.9% |
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 losing 1,158 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 46,044 |
|---|---|
| Migration · People moving out (annual) | 47,202 |
| Migration · Net migration (in − out) | -1,158 |
| 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 | 50,918 |
|---|---|
| With Disability | 8,330 |
| Pct With Disability | 16.4% |
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 | 474 |
|---|
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Other
| Census Mobility · Total | 51,066 |
|---|---|
| Census Mobility · Same House | 46,574 |
| Census Mobility · Same County | 1,959 |
| Census Mobility · Diff County Same State | 1,851 |
| Census Mobility · Diff State | 457 |
| Census Mobility · From Abroad | 225 |
| Census Mobility · Moved Total | 4,492 |
| Census Mobility · Pct Moved In Year | 8.8% |
| Pct White | 63.9% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28