St. Rose: Demographics & People
Census counts 7,644 people in St. Rose, in 2,551 households. Population grew 5.1% from 7,271 (2022) to 7,644 (2024). Median age 39.4 years. (1.5y older than Louisiana). Children under 18 are 24% of the population. Population is 41% Black and 34% White (non-Hispanic). The community is highly diverse (Simpson index 0.63). 73% of households are family-led. County is losing 1,158 residents per year (2022-2023). County health: 37% adult obesity, 16% smoke.
- 3.0 people per household.
- 27% non-family households (singles, roommates).
Population & Trend
Population grew 5.1% from 7,271 (2022) to 7,644 (2024) — about 8.6× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~8,041 (extrapolated at 2.6%/yr trend). Census Bureau Vintage estimate: 8,590.
| Census data vintage | 2024 |
|---|---|
| Population | 52,549 people |
| Annual growth rate · Population change | 5.1% |
| Annual growth rate · Population (2022) | 7,271 |
| Annual growth rate · Population (2024) | 7,644 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 7,644 people |
| Population Estimate | 8,590 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 39.4y is 0.5 years older than the U.S. median (38.9y). Children under 18 make up 24% — above the U.S. share of ~22%.
| Age Summary · Median age | 39.4 years (vs Louisiana 37.9y) |
|---|---|
| Age Summary · Children Pct | 24.4% |
| Age Summary · Character | family-oriented |
| Population under 18 | 1,864 |
| Median age | 39.4 years (vs Louisiana 37.9y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 7,644 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.63 (0 = single group, 1 = perfectly even distribution); this is read as highly diverse.
| White residents | 2,877 |
|---|---|
| Black residents | 3,120 |
| Hispanic or Latino residents | 1,308 |
| Diversity Index · Diversity index (Simpson) | 63.0% |
| Diversity Index · Diversity label | highly diverse |
| Diversity Index · Groups counted | 3 |
| Diversity Index · Largest group share | 42.7% |
| Asian population | 0.4% |
| Black population | 40.9% |
| Hispanic or Latino population | 19.3% |
| White (non-Hispanic) population | 33.5% |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Ancestry
Self-reported ancestry from Census ACS — what residents report as their ethnic origin, separate from race. Counts can exceed population because people can list multiple ancestries.
Top (8)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 1.5% are foreign-born — below the U.S. average of 13.9%. 11% have naturalized to U.S. citizenship.
| Residents born in this state | 5,890 |
|---|---|
| Residents born in another state | 777 |
| Share born in this state | 77.1% |
| Share born in another state | 22.9% |
| Native-born U.S. citizens | 10.2% |
| Foreign-born residents | 1.5% |
| Naturalized citizens | 11.3% |
| Total foreign-born residents | 671 |
| From Europe | 56 |
Households & Family Composition
2,551 households. Averaging 3.0 people each — larger than the U.S. average of 2.5. 73% are family households — above the U.S. share of ~65%. Of 1,732 families, 26% are married couples with children.
| Children under 18 | 1,670 |
|---|---|
| Total families | 1,732 |
| Married couples with children | 444 |
| Single-parent households | 28 |
| Average household size | 2.98 |
| Women who gave birth (past year) | 14.0% |
| Grandparents living with grandchildren | 220 |
| Grandparents responsible for grandchildren | 17 |
| Family households | 1,872 households |
| Households that are families | 73.4% |
| Total households | 2,551 households |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 4.5% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 1,158 residents per year on net (IRS migration data).
| Moved within the county (past year) | 4.5% |
|---|---|
| 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 2021-2022 · Refreshed 2026-04-12
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.
| Residents with a disability | 375 |
|---|---|
| Disability rate | 5.0% |
Other
| Congressional District · District | 2 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 22,089 |
| Cdc Birth Rate · State Fips | 22 |
| Cdc Birth Rate · County Fips | 89 |
| Cdc Birth Rate · County | St Charles |
| Cdc Birth Rate · Birth Rate | 14.6% |
| Cdc Birth Rate · Lower Ci | 12.10 |
| Cdc Birth Rate · Upper Ci | 17.40 |
| Cdc Mortality · Fips | 22,089 |
| Cdc Mortality · County | St. Charles Parish |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 1,157 |
| Cdc Vaccination · Fips | 22,089 |
| Cdc Vaccination · County | St. Charles Parish |
| Cdc Vaccination · Dose1 Pop Pct | 65.4% |
| Cdc Vaccination · Series Complete Pct | 58.2% |
| Cdc Vaccination · Booster Pct | 43.6% |
| Cdc Vaccination · Population 2019 | 53,100 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 2.30 |
| Family Score · Schools | 2 |
| Family Score · Childcare Centers | 1 |
| Family Score · Children Pct | 24.4% |
| Family Score · Rating | limited |
| Town Summary · Key Facts | population 7,644, booming, family-oriented, middle-class, mixed |
| Town Summary · Population | 7,644 people |
| Town Summary · County | St. Charles Parish |
Sources: NCES school congressional district assignment · federal dataset cascade