Demographics & People — Algonquin, Illinois
Population Overview
| Population (Census) | 29,904 |
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| Estimated 2026 | ~30,500 |
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| Median Age | 41.4 |
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| Total Households | 10,914 |
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| Family Households | 8,573 |
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| Average Household Size | 2.74 |
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| Diversity Index | 0.3636 (somewhat diverse) |
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Race & Ethnicity
| White | 23,756 |
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| Black or African American | 666 |
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| Asian | 1,671 |
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| Hispanic or Latino | 4,240 |
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Heritage & Ancestry
| Group | Count |
|---|
| German | 7,305 |
| Unclassified or not reported | 5,778 |
| Other groups | 5,683 |
| Polish | 4,678 |
| Irish | 4,193 |
| Hispanic: Hispanic or Latino | 3,337 |
| Italian | 3,286 |
| Hispanic: Mexican | 2,447 |
| English | 2,376 |
| Swedish | 1,166 |
Language
| English Only | 22,508 |
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| Spanish | 2,730 |
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| Population 5+ | 28,350 |
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Veterans
| Veterans | 1,270 |
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| Population 18+ | 23,661 |
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Commuting
| Mean Commute Time | 30.6 minutes |
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| Work from Home | 23.1% |
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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 Algonquin, Illinois.
