Demographics & People — Eureka, Illinois
Population Overview
| Population (Census) | 5,095 |
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| Estimated 2026 | ~4,800 |
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| Median Age | 42.2 |
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| Total Households | 2,148 |
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| Family Households | 1,202 |
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| Average Household Size | 2.11 |
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| Diversity Index | 0.0862 (relatively homogeneous) |
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Race & Ethnicity
| White | 4,742 |
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| Black or African American | 96 |
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| Asian | 11 |
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| Hispanic or Latino | 114 |
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Heritage & Ancestry
| Group | Count |
|---|
| German | 1,951 |
| Unclassified or not reported | 1,712 |
| Irish | 717 |
| English | 492 |
| Other groups | 385 |
| European | 292 |
| American | 245 |
| Hispanic: Hispanic or Latino | 225 |
| Hispanic: Mexican | 189 |
| French (except Basque) | 151 |
Language
| English Only | 4,727 |
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| Spanish | 70 |
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| Population 5+ | 4,826 |
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Veterans
| Veterans | 172 |
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| Population 18+ | 4,519 |
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Commuting
| Mean Commute Time | 31.7 minutes |
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| Work from Home | 12.4% |
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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 Eureka, Illinois.
