Demographics & People — St. Clair, Pennsylvania
Population Overview
| Population (Census) | 2,755 |
|---|
| Estimated 2026 | ~2,700 |
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| Median Age | 47.0 |
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| Total Households | N/A |
|---|
| Family Households | N/A |
|---|
| Average Household Size | N/A |
|---|
| Diversity Index | N/A (N/A) |
|---|
Race & Ethnicity
| White | N/A |
|---|
| Black or African American | N/A |
|---|
| Asian | N/A |
|---|
| Hispanic or Latino | N/A |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| German | 673 |
| Irish | 571 |
| Unclassified or not reported | 538 |
| Polish | 448 |
| Italian | 213 |
| English | 157 |
| Other groups | 146 |
| Lithuanian | 144 |
| French (except Basque) | 122 |
| Russian | 114 |
Language
| English Only | 2,559 |
|---|
| Spanish | 56 |
|---|
| Population 5+ | 2,636 |
|---|
Veterans
| Veterans | 157 |
|---|
| Population 18+ | 2,340 |
|---|
Source: Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for St. Clair, Pennsylvania.
