Demographics & People — Romeoville, Illinois
Population Overview
| Population (Census) | 40,996 |
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| Estimated 2026 | ~41,500 |
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| Median Age | 35.5 |
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| Total Households | 13,064 |
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| Family Households | 9,839 |
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| Average Household Size | 3.09 |
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| Diversity Index | 0.6348 (highly diverse) |
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Race & Ethnicity
| White | 21,143 |
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| Black or African American | 5,183 |
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| Asian | 2,667 |
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| Hispanic or Latino | 14,636 |
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Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 17,004 |
| Hispanic: Hispanic or Latino | 14,127 |
| Hispanic: Mexican | 12,320 |
| Unclassified or not reported | 7,399 |
| German | 5,095 |
| Polish | 3,985 |
| Irish | 3,656 |
| Italian | 3,421 |
| English | 1,006 |
| Subsaharan African | 944 |
Language
| English Only | 23,689 |
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| Spanish | 9,999 |
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| Population 5+ | 38,470 |
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Veterans
| Veterans | 1,234 |
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| Population 18+ | 30,712 |
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Commuting
| Mean Commute Time | 32.3 minutes |
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| Work from Home | 11.8% |
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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 Romeoville, Illinois.
