Demographics & People — Fairfield, Illinois
Population Overview
| Population (Census) | 4,658 |
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| Estimated 2026 | ~4,300 |
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| Median Age | 46.4 |
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| Total Households | 2,319 |
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| Family Households | 1,218 |
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| Average Household Size | 1.98 |
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| Diversity Index | 0.0496 (relatively homogeneous) |
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Race & Ethnicity
| White | 4,444 |
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| Black or African American | 37 |
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| Asian | 33 |
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| Hispanic or Latino | 45 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 1,618 |
| English | 844 |
| German | 831 |
| Other groups | 801 |
| Irish | 638 |
| American | 266 |
| Swedish | 177 |
| Scottish | 153 |
| Italian | 75 |
| French (except Basque) | 75 |
Language
| English Only | 4,329 |
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| Spanish | 58 |
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| Population 5+ | 4,405 |
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Veterans
| Veterans | 220 |
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| Population 18+ | 3,834 |
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Commuting
| Mean Commute Time | 18.0 minutes |
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| Work from Home | 2.7% |
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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 Fairfield, Illinois.
