Demographics & People — Sullivan, Indiana
Population Overview
| Population (Census) | 4,250 |
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| Estimated 2026 | ~4,300 |
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| Median Age | 33.2 |
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| Total Households | 1,635 |
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| Family Households | 1,060 |
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| Average Household Size | 2.55 |
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| Diversity Index | 0.0164 (relatively homogeneous) |
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Race & Ethnicity
| White | 3,952 |
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| Black or African American | 4 |
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| Asian | 0 |
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| Hispanic or Latino | 29 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 1,901 |
| Other groups | 623 |
| German | 609 |
| Irish | 587 |
| English | 522 |
| Italian | 298 |
| American | 265 |
| Dutch | 154 |
| European | 100 |
| Scotch-Irish | 54 |
Language
| English Only | 3,789 |
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| Spanish | 24 |
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| Population 5+ | 3,813 |
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Veterans
| Veterans | 213 |
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| Population 18+ | 3,124 |
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Commuting
| Mean Commute Time | 22.5 minutes |
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| Work from Home | 7.0% |
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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 Sullivan, Indiana.
