Demographics & People — Rock Island, Illinois
Population Overview
| Population (Census) | 36,758 |
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| Estimated 2026 | ~34,800 |
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| Median Age | 37.4 |
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| Total Households | 15,679 |
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| Family Households | 8,014 |
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| Average Household Size | 2.15 |
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| Diversity Index | 0.5041 (moderately diverse) |
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Race & Ethnicity
| White | 25,003 |
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| Black or African American | 6,038 |
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| Asian | 1,247 |
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| Hispanic or Latino | 4,949 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 11,200 |
| Other groups | 10,796 |
| German | 6,538 |
| Hispanic: Hispanic or Latino | 5,078 |
| Irish | 4,517 |
| Hispanic: Mexican | 4,438 |
| English | 2,561 |
| Swedish | 1,267 |
| Subsaharan African | 1,173 |
| Belgian | 969 |
Language
| English Only | 30,020 |
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| Spanish | 2,501 |
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| Population 5+ | 34,651 |
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Veterans
| Veterans | 1,766 |
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| Population 18+ | 28,983 |
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Commuting
| Mean Commute Time | 19.3 minutes |
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| Work from Home | 10.3% |
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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 Rock Island, Illinois.
