Demographics & People — Sullivan, Missouri
Population Overview
| Population (Census) | 6,355 |
| Estimated 2026 | ~6,200 |
| Median Age | 39.4 |
| Total Households | 2,747 |
| Family Households | 1,581 |
| Average Household Size | 2.27 |
| Diversity Index | 0.0745 (relatively homogeneous) |
Race & Ethnicity
| White | 5,541 |
| Black or African American | 120 |
| Asian | 0 |
| Hispanic or Latino | 101 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 2,263 |
| German | 1,562 |
| Other groups | 903 |
| English | 901 |
| Irish | 709 |
| American | 591 |
| Italian | 247 |
| French (except Basque) | 236 |
| Hispanic: Hispanic or Latino | 115 |
| British | 100 |
Language
| English Only | 5,891 |
| Spanish | 44 |
| Population 5+ | 5,972 |
Veterans
| Veterans | 333 |
| Population 18+ | 4,951 |
Commuting
| Mean Commute Time | 21.8 minutes |
| Work from Home | 5.4% |
| Commuter Profile | N/A |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Sullivan, Missouri.