Demographics & People — Centralia, Illinois
Population Overview
| Population (Census) | 12,009 |
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| Estimated 2026 | ~11,500 |
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| Median Age | 39.1 |
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| Total Households | 5,232 |
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| Family Households | 2,684 |
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| Average Household Size | 2.2 |
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| Diversity Index | 0.2759 (somewhat diverse) |
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Race & Ethnicity
| White | 9,883 |
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| Black or African American | 1,161 |
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| Asian | 194 |
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| Hispanic or Latino | 471 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 3,793 |
| Other groups | 2,849 |
| German | 2,557 |
| Irish | 1,562 |
| English | 1,034 |
| American | 733 |
| Hispanic: Hispanic or Latino | 531 |
| Italian | 404 |
| Scotch-Irish | 304 |
| Hispanic: Mexican | 243 |
Language
| English Only | 10,683 |
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| Spanish | 285 |
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| Population 5+ | 11,185 |
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Veterans
| Veterans | 811 |
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| Population 18+ | 9,223 |
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Commuting
| Mean Commute Time | 19.0 minutes |
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| Work from Home | 6.0% |
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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 Centralia, Illinois.
