St. Bernard: Demographics & People
About 3,983 people live in St. Bernard, in 1,779 households. Population shrank 0.4% from 3,998 (2022) to 3,983 (2024). Median age 44.6 years. (7.7y older than Hamilton County; 4.8y older than Ohio). Children under 18 are 19% of the population. Population is 82% White (non-Hispanic) and 8% Black. The community is somewhat diverse (Simpson index 0.26). 57% of households are family-led. County is losing 13,890 residents per year (2022-2023). County health: 39% adult obesity, 18% smoke.
- 2.2 people per household.
- 43% non-family households (singles, roommates).
Population & Trend
Population shrank 0.4% from 3,998 (2022) to 3,983 (2024). Estimated 2026 population: ~3,967 (extrapolated at -0.2%/yr trend). Census Bureau Vintage estimate: 3,947.
| Census data vintage | 2024 |
|---|---|
| Population | 830,639 people |
| Annual growth rate · Population change | -0.4% |
| Annual growth rate · Population (2022) | 3,998 |
| Annual growth rate · Population (2024) | 3,983 |
| Annual growth rate · Trend category | stable |
| Population | 3,983 people |
| Population Estimate | 3,947 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 44.6y is 5.7 years older than the U.S. median (38.9y). Children under 18 make up 19% — below the U.S. share of ~22%.
| Age Summary · Median age | 44.6 years (vs Ohio 39.8y) |
|---|---|
| Age Summary · Children Pct | 18.7% |
| Age Summary · Character | established |
| Population under 18 | 745 |
| Median age | 44.6 years (vs Ohio 39.8y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 3,983 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.26 (0 = single group, 1 = perfectly even distribution); this is read as somewhat diverse.
| White residents | 3,414 |
|---|---|
| Black residents | 402 |
| Hispanic or Latino residents | 188 |
| Diversity Index · Diversity index (Simpson) | 26.1% |
| Diversity Index · Diversity label | somewhat diverse |
| Diversity Index · Groups counted | 3 |
| Diversity Index · Largest group share | 85.3% |
| Asian population | 0.2% |
| Black population | 7.8% |
| Hispanic or Latino population | 5.3% |
| White (non-Hispanic) population | 81.8% |
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). 0.1% are foreign-born — below the U.S. average of 13.9%. 4% have naturalized to U.S. citizenship.
| Residents born in this state | 3,042 |
|---|---|
| Residents born in another state | 768 |
| Share born in this state | 76.4% |
| Share born in another state | 23.6% |
| Native-born U.S. citizens | 19.3% |
| Foreign-born residents | 0.1% |
| Naturalized citizens | 4.3% |
| Total foreign-born residents | 140 |
| From Europe | 3 |
| From Africa | 32 |
Households & Family Composition
1,779 households. Averaging 2.2 people each — smaller than the U.S. average of 2.5. 57% are family households — below the U.S. share of ~65%. Of 1,039 families, 28% are married couples with children.
| Children under 18 | 690 |
|---|---|
| Total families | 1,039 |
| Married couples with children | 288 |
| Single-parent households | 63 |
| Average household size | 2.25 |
| Women who gave birth (past year) | 7.0% |
| Grandparents living with grandchildren | 44 |
| Family households | 1,011 households |
| Households that are families | 56.8% |
| Total households | 1,779 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. 12.9% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 13,890 residents per year on net (IRS migration data).
| Moved within the county (past year) | 12.9% |
|---|---|
| Migration · People moving in (annual) | 715,304 |
| Migration · People moving out (annual) | 729,194 |
| Migration · Net migration (in − out) | -13,890 |
| 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 | 221 |
|---|---|
| Disability rate | 5.5% |
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. 15 residents live in group quarters (0.4% of population).
| Living in group quarters | 15 |
|---|
Other
| Congressional District · District | 1 |
|---|---|
| Congressional District · Formatted | OH-01 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 39,061 |
| Cdc Birth Rate · State Fips | 39 |
| Cdc Birth Rate · County Fips | 61 |
| Cdc Birth Rate · County | Hamilton |
| Cdc Birth Rate · Birth Rate | 20.6% |
| Cdc Birth Rate · Lower Ci | 19.70 |
| Cdc Birth Rate · Upper Ci | 21.60 |
| Cdc Mortality · Fips | 39,061 |
| Cdc Mortality · County | Hamilton County |
| Cdc Mortality · Urban Rural | Large central metro |
| Cdc Mortality · Total Deaths 2020 2023 | 39,182 |
| Cdc Vaccination · Fips | 39,061 |
| Cdc Vaccination · County | Hamilton County |
| Cdc Vaccination · Dose1 Pop Pct | 71.9% |
| Cdc Vaccination · Series Complete Pct | 65.6% |
| Cdc Vaccination · Booster Pct | 55.9% |
| Cdc Vaccination · Population 2019 | 817,473 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 18.7% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 3,983, stable, established, middle-class, mixed |
| Town Summary · Population | 3,983 people |
| Town Summary · County | Hamilton County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade