Demographics & People — Waterloo, Illinois
Population Overview
| Population (Census) | 11,055 |
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| Estimated 2026 | ~11,300 |
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| Median Age | 41.5 |
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| Total Households | 4,395 |
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| Family Households | 2,984 |
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| Average Household Size | 2.47 |
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| Diversity Index | 0.0718 (relatively homogeneous) |
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Race & Ethnicity
| White | 10,597 |
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| Black or African American | 90 |
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| Asian | 123 |
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| Hispanic or Latino | 192 |
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Heritage & Ancestry
| Group | Count |
|---|
| German | 4,837 |
| Unclassified or not reported | 2,848 |
| Irish | 1,392 |
| Other groups | 1,184 |
| English | 1,043 |
| American | 587 |
| Polish | 480 |
| French (except Basque) | 373 |
| Italian | 233 |
| Scotch-Irish | 125 |
Language
| English Only | 10,309 |
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| Spanish | 91 |
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| Population 5+ | 10,454 |
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Veterans
| Veterans | 781 |
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| Population 18+ | 8,595 |
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Commuting
| Mean Commute Time | 26.8 minutes |
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| Work from Home | 12.9% |
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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 Waterloo, Illinois.
