St. Petersburg: Demographics & People
St. Petersburg is home to 267 people, in 114 households. Population grew 4.3% from 256 (2022) to 267 (2024). Median age 50.8 years. (9.1y older than Clarion County; 9.6y older than Pennsylvania). Children under 18 are 13% of the population. Population is 96% White (non-Hispanic) and 1% Hispanic or Latino. 60% of households are family-led. County is losing 164 residents per year (2022-2023). County health: 36% adult obesity, 19% smoke.
- 2.3 people per household.
- 40% non-family households (singles, roommates).
Population & Trend
Population grew 4.3% from 256 (2022) to 267 (2024) — about 7.2× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~278 (extrapolated at 2.1%/yr trend). Census Bureau Vintage estimate: 294.
| Census data vintage | 2024 |
|---|---|
| Population | 37,241 people |
| Annual growth rate · Population change | 4.3% |
| Annual growth rate · Population (2022) | 256 |
| Annual growth rate · Population (2024) | 267 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | growing |
| Population | 267 people |
| Population Estimate | 294 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 50.8y is 11.9 years older than the U.S. median (38.9y). Children under 18 make up 13% — below the U.S. share of ~22%.
| Age Summary · Median age | 50.8 years (vs Pennsylvania 41.2y) |
|---|---|
| Age Summary · Children Pct | 12.7% |
| Age Summary · Character | retirement community |
| Population under 18 | 34 |
| Median age | 50.8 years (vs Pennsylvania 41.2y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 267 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 248 |
|---|---|
| Hispanic or Latino residents | 2 |
| Diversity Index · Simpson Index | 13.3% |
| Diversity Index · Interpretation | less diverse |
| Hispanic or Latino population | 1.1% |
| White (non-Hispanic) population | 95.9% |
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 (6)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in this state | 214 |
|---|---|
| Residents born in another state | 51 |
| Share born in this state | 80.1% |
| Share born in another state | 19.9% |
| Native-born U.S. citizens | 19.1% |
| Naturalized citizens | 0.7% |
| Total foreign-born residents | 323 |
Households & Family Composition
114 households. Averaging 2.4 people each — smaller than the U.S. average of 2.5. 60% are family households — below the U.S. share of ~65%. Of 62 families, 13% are married couples with children.
| Children under 18 | 31 |
|---|---|
| Total families | 62 |
| Married couples with children | 8 |
| Average household size | 2.35 |
| Women who gave birth (past year) | 13.1% |
| Grandparents living with grandchildren | 2 |
| Family households | 68 households |
| Households that are families | 59.6% |
| Total households | 114 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. 9.0% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 164 residents per year on net (IRS migration data).
| Moved within the county (past year) | 9.0% |
|---|---|
| Migration · People moving in (annual) | 32,171 |
| Migration · People moving out (annual) | 32,335 |
| Migration · Net migration (in − out) | -164 |
| 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 | 44 |
|---|---|
| Disability rate | 16.2% |
Other
| Congressional District · District | 15 |
|---|---|
| Congressional District · Formatted | PA-15 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 42,031 |
| Cdc Birth Rate · State Fips | 42 |
| Cdc Birth Rate · County Fips | 31 |
| Cdc Birth Rate · County | Clarion |
| Cdc Birth Rate · Birth Rate | 10.5% |
| Cdc Birth Rate · Lower Ci | 8.30 |
| Cdc Birth Rate · Upper Ci | 13.00 |
| Cdc Mortality · Fips | 42,031 |
| Cdc Mortality · County | Clarion County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 1,482 |
| Cdc Vaccination · Fips | 42,031 |
| Cdc Vaccination · County | Clarion County |
| Cdc Vaccination · Dose1 Pop Pct | 51.4% |
| Cdc Vaccination · Series Complete Pct | 45.8% |
| Cdc Vaccination · Booster Pct | 48.7% |
| Cdc Vaccination · Population 2019 | 38,438 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 8.00 |
| Family Score · Schools | 14 |
| Family Score · Children Pct | 12.7% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 267, growing, retirement community, middle-class, mixed |
| Town Summary · Population | 267 people |
| Town Summary · County | Clarion County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade