St. Bonaventure: Demographics & People
1,976 people call St. Bonaventure home, in 259 households. Population grew 0.8% from 1,961 (2022) to 1,976 (2024). Median age 20.5 years. (22.3y younger than Cattaraugus County; 19.9y younger than New York). Children under 18 are 1% of the population. Population is 82% White (non-Hispanic) and 10% Hispanic or Latino. 40% of households are family-led. County is losing 940 residents per year (2022-2023). County health: 36% adult obesity, 19% smoke.
- 7.6 people per household.
- 60% non-family households (singles, roommates).
Population & Trend
Population grew 0.8% from 1,961 (2022) to 1,976 (2024) — about 1.3× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~1,991 (extrapolated at 0.4%/yr trend). Census Bureau Vintage estimate: 2,011.
| Census data vintage | 2024 |
|---|---|
| Population | 77,042 people |
| Annual growth rate · Population change | 0.8% |
| Annual growth rate · Population (2022) | 1,961 |
| Annual growth rate · Population (2024) | 1,976 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | stable |
| Population | 1,976 people |
| Population Estimate | 2,011 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 20.5y is 18.4 years younger than the U.S. median (38.9y). Children under 18 make up 1% — below the U.S. share of ~22%.
| Age Summary · Median age | 20.5 years (vs New York 40.4y) |
|---|---|
| Age Summary · Children Pct | 1.1% |
| Age Summary · Character | young community |
| Population under 18 | 21 |
| Median age | 20.5 years (vs New York 40.4y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 1,976 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 1,725 |
|---|---|
| Black residents | 105 |
| Asian residents | 37 |
| Hispanic or Latino residents | 133 |
| Diversity Index · Simpson Index | 23.0% |
| Diversity Index · Interpretation | less diverse |
| Asian population | 1.9% |
| Black population | 1.6% |
| Hispanic or Latino population | 10.2% |
| White (non-Hispanic) population | 82.3% |
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). 0.7% are foreign-born — below the U.S. average of 13.9%. 6% have naturalized to U.S. citizenship.
| Residents born in this state | 1,300 |
|---|---|
| Residents born in another state | 545 |
| Share born in this state | 65.8% |
| Share born in another state | 34.2% |
| Native-born U.S. citizens | 27.6% |
| Foreign-born residents | 0.7% |
| Naturalized citizens | 5.9% |
| Total foreign-born residents | 122 |
| From Europe | 65 |
| From Africa | 15 |
Households & Family Composition
259 households. Averaging 1.7 people each — smaller than the U.S. average of 2.5. 40% are family households — below the U.S. share of ~65%. Of 117 families, 21% are married couples with children.
| Children under 18 | 52 |
|---|---|
| Total families | 117 |
| Married couples with children | 25 |
| Average household size | 1.68 |
| Women who gave birth (past year) | 4.0% |
| Grandparents living with grandchildren | 1,172 |
| Grandparents responsible for grandchildren | 402 |
| Family households | 103 households |
| Households that are families | 39.8% |
| Total households | 259 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. 20.8% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 940 residents per year on net (IRS migration data).
| Moved within the county (past year) | 20.8% |
|---|---|
| Migration · People moving in (annual) | 62,086 |
| Migration · People moving out (annual) | 63,026 |
| Migration · Net migration (in − out) | -940 |
| 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 | 105 |
|---|---|
| Disability rate | 5.0% |
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. 1,587 residents live in group quarters (80.3% of population).
| Living in group quarters | 1,587 |
|---|
Other
| Congressional District · District | 23 |
|---|---|
| Congressional District · Formatted | NY-23 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 36,009 |
| Cdc Birth Rate · State Fips | 36 |
| Cdc Birth Rate · County Fips | 9 |
| Cdc Birth Rate · County | Cattaraugus |
| Cdc Birth Rate · Birth Rate | 16.9% |
| Cdc Birth Rate · Lower Ci | 14.60 |
| Cdc Birth Rate · Upper Ci | 19.50 |
| Cdc Mortality · Fips | 36,009 |
| Cdc Mortality · County | Cattaraugus County |
| Cdc Mortality · Urban Rural | Micropolitan |
| Cdc Mortality · Total Deaths 2020 2023 | 3,079 |
| Cdc Vaccination · Fips | 36,009 |
| Cdc Vaccination · County | Cattaraugus County |
| Cdc Vaccination · Dose1 Pop Pct | 64.6% |
| Cdc Vaccination · Series Complete Pct | 58.3% |
| Cdc Vaccination · Booster Pct | 55.5% |
| Cdc Vaccination · Population 2019 | 76,117 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 1.1% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 1,976, stable, young community, middle-class, service economy |
| Town Summary · Population | 1,976 people |
| Town Summary · County | Cattaraugus County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade