Demographics & People — St. Clair, Missouri
Population Overview
| Population (Census) | 4,767 |
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| Estimated 2026 | ~4,800 |
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| Median Age | 37.6 |
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| Total Households | 1,999 |
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| Family Households | 1,241 |
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| Average Household Size | 2.34 |
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| Diversity Index | 0.0402 (relatively homogeneous) |
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Race & Ethnicity
| White | 4,427 |
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| Black or African American | 37 |
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| Asian | 19 |
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| Hispanic or Latino | 36 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 2,117 |
| German | 1,149 |
| Irish | 934 |
| Other groups | 503 |
| English | 433 |
| American | 406 |
| Polish | 87 |
| Italian | 81 |
| Scottish | 63 |
| French (except Basque) | 56 |
Language
| English Only | 4,515 |
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| Spanish | 25 |
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| Population 5+ | 4,563 |
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Veterans
| Veterans | 313 |
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| Population 18+ | 3,765 |
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Commuting
| Mean Commute Time | 29.4 minutes |
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| Work from Home | 7.6% |
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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. Clair, Missouri.
