Demographics & People — Markham, Illinois
Population Overview
| Population (Census) | 11,434 |
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| Estimated 2026 | ~11,200 |
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| Median Age | 34.2 |
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| Total Households | 3,753 |
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| Family Households | 2,617 |
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| Average Household Size | 3.03 |
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| Diversity Index | 0.4761 (moderately diverse) |
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Race & Ethnicity
| White | 1,715 |
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| Black or African American | 8,029 |
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| Asian | 34 |
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| Hispanic or Latino | 1,849 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 7,380 |
| Unclassified or not reported | 3,155 |
| Hispanic: Hispanic or Latino | 1,283 |
| Hispanic: Mexican | 1,256 |
| Irish | 382 |
| German | 340 |
| Italian | 228 |
| American | 212 |
| English | 116 |
| French (except Basque) | 115 |
Language
| English Only | 9,118 |
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| Spanish | 1,377 |
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| Population 5+ | 10,527 |
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Veterans
| Veterans | 339 |
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| Population 18+ | 8,147 |
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Commuting
| Mean Commute Time | 35.7 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 Markham, Illinois.
