Demographics & People — Petersburg, Illinois
Population Overview
| Population (Census) | 2,590 |
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| Estimated 2026 | ~1,800 |
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| Median Age | 38.7 |
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| Total Households | 1,247 |
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| Family Households | 756 |
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| Average Household Size | 2.06 |
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| Diversity Index | 0.0065 (relatively homogeneous) |
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Race & Ethnicity
| White | 2,451 |
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| Black or African American | 8 |
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| Asian | 0 |
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| Hispanic or Latino | 0 |
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Heritage & Ancestry
| Group | Count |
|---|
| German | 676 |
| Unclassified or not reported | 652 |
| English | 418 |
| Other groups | 350 |
| Irish | 262 |
| Polish | 158 |
| American | 150 |
| Italian | 124 |
| Scottish | 76 |
| French (except Basque) | 68 |
Language
| English Only | 2,436 |
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| Spanish | 4 |
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| Population 5+ | 2,463 |
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Veterans
| Veterans | 190 |
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| Population 18+ | 1,920 |
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Commuting
| Mean Commute Time | 22.3 minutes |
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| Work from Home | 8.0% |
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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 Petersburg, Illinois.
