Demographics & People — Collinsville, Illinois
Population Overview
| Population (Census) | 24,126 |
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| Estimated 2026 | ~23,800 |
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| Median Age | 38.5 |
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| Total Households | 11,111 |
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| Family Households | 6,316 |
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| Average Household Size | 2.16 |
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| Diversity Index | 0.4161 (moderately diverse) |
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Race & Ethnicity
| White | 17,839 |
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| Black or African American | 3,956 |
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| Asian | 315 |
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| Hispanic or Latino | 1,940 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 6,588 |
| German | 5,799 |
| Other groups | 5,539 |
| Irish | 3,454 |
| English | 2,509 |
| Hispanic: Hispanic or Latino | 1,748 |
| Italian | 1,638 |
| Hispanic: Mexican | 1,087 |
| American | 968 |
| Polish | 714 |
Language
| English Only | 21,500 |
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| Spanish | 1,107 |
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| Population 5+ | 23,153 |
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Veterans
| Veterans | 1,436 |
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| Population 18+ | 19,566 |
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Commuting
| Mean Commute Time | 24.2 minutes |
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| Work from Home | 12.7% |
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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 Collinsville, Illinois.
