Demographics & People — Chatham, Illinois
Population Overview
| Population (Census) | 14,740 |
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| Estimated 2026 | ~14,400 |
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| Median Age | 35.4 |
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| Total Households | 5,621 |
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| Family Households | 3,665 |
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| Average Household Size | 2.62 |
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| Diversity Index | 0.1553 (relatively homogeneous) |
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Race & Ethnicity
| White | 13,300 |
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| Black or African American | 334 |
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| Asian | 374 |
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| Hispanic or Latino | 483 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 4,885 |
| German | 3,493 |
| Other groups | 1,993 |
| Irish | 1,961 |
| English | 1,873 |
| American | 784 |
| Italian | 464 |
| Polish | 281 |
| Scottish | 252 |
| European | 251 |
Language
| English Only | 12,885 |
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| Spanish | 152 |
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| Population 5+ | 13,605 |
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Veterans
| Veterans | 622 |
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| Population 18+ | 9,898 |
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Commuting
| Mean Commute Time | 23.0 minutes |
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| Work from Home | 15.3% |
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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 Chatham, Illinois.
