Demographics & People — St. Marys, Pennsylvania
Population Overview
| Population (Census) | 12,612 |
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| Estimated 2026 | ~12,300 |
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| Median Age | 51.6 |
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| Total Households | 5,671 |
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| Family Households | 3,339 |
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| Average Household Size | 2.17 |
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| Diversity Index | N/A (N/A) |
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Race & Ethnicity
| White | 11,878 |
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| Black or African American | 218 |
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| Asian | 35 |
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| Hispanic or Latino | 202 |
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Heritage & Ancestry
| Group | Count |
|---|
| German | 6,197 |
| Unclassified or not reported | 2,550 |
| Italian | 1,887 |
| Irish | 1,758 |
| English | 840 |
| Other groups | 763 |
| American | 554 |
| Polish | 498 |
| French (except Basque) | 337 |
| European | 268 |
Language
| English Only | 11,617 |
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| Spanish | 112 |
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| Population 5+ | 11,977 |
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Veterans
| Veterans | 722 |
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| Population 18+ | 10,491 |
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Commuting
| Mean Commute Time | 14.2 minutes |
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| Work from Home | 1.8% |
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| Commuter Profile | N/A |
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Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for St. Marys, Pennsylvania.
