Demographics & People — Sullivan, Wisconsin
Population Overview
| Population (Census) | 711 |
| Estimated 2026 | ~600 |
| Median Age | 42.6 |
| Total Households | 274 |
| Family Households | 145 |
| Average Household Size | 2.59 |
| Diversity Index | 0.0279 (relatively homogeneous) |
Race & Ethnicity
| White | 698 |
| Black or African American | 0 |
| Asian | 3 |
| Hispanic or Latino | 7 |
Heritage & Ancestry
| Group | Count |
| German | 369 |
| Unclassified or not reported | 137 |
| Irish | 85 |
| Polish | 63 |
| Other groups | 55 |
| Austrian | 41 |
| English | 35 |
| Hispanic: Hispanic or Latino | 28 |
| Hispanic: Mexican | 24 |
| Norwegian | 20 |
Language
| English Only | 657 |
| Spanish | 20 |
| Population 5+ | 682 |
Veterans
| Veterans | 22 |
| Population 18+ | 525 |
Commuting
| Mean Commute Time | 28.9 minutes |
| Work from Home | 15.9% |
| 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, Wisconsin.