Demographics & People — Belleville, Illinois
Population Overview
| Population (Census) | 41,722 |
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| Estimated 2026 | ~40,600 |
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| Median Age | 39.1 |
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| Total Households | 17,694 |
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| Family Households | 9,654 |
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| Average Household Size | 2.27 |
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| Diversity Index | 0.5059 (moderately diverse) |
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Race & Ethnicity
| White | 24,103 |
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| Black or African American | 13,364 |
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| Asian | 367 |
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| Hispanic or Latino | 1,429 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 14,144 |
| Unclassified or not reported | 11,931 |
| German | 9,144 |
| Irish | 4,253 |
| English | 2,937 |
| Hispanic: Hispanic or Latino | 1,750 |
| American | 1,435 |
| Hispanic: Mexican | 1,168 |
| Italian | 1,050 |
| Polish | 989 |
Language
| English Only | 37,942 |
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| Spanish | 423 |
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| Population 5+ | 39,461 |
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Veterans
| Veterans | 3,334 |
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| Population 18+ | 32,122 |
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Commuting
| Mean Commute Time | 25.1 minutes |
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| Work from Home | 12.2% |
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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 Belleville, Illinois.
