Demographics & People — Sussex, Wisconsin
Population Overview
| Population (Census) | 11,795 |
| Estimated 2026 | ~12,700 |
| Median Age | 39.2 |
| Total Households | 4,679 |
| Family Households | 3,073 |
| Average Household Size | 2.52 |
| Diversity Index | 0.2057 (somewhat diverse) |
Race & Ethnicity
| White | 10,299 |
| Black or African American | 160 |
| Asian | 945 |
| Hispanic or Latino | 204 |
Heritage & Ancestry
| Group | Count |
| German | 6,234 |
| Unclassified or not reported | 1,720 |
| Irish | 1,364 |
| Polish | 1,335 |
| Other groups | 1,114 |
| Italian | 707 |
| English | 610 |
| Norwegian | 498 |
| Dutch | 307 |
| French (except Basque) | 276 |
Language
| English Only | 10,450 |
| Spanish | 43 |
| Population 5+ | 11,175 |
Veterans
| Veterans | 315 |
| Population 18+ | 8,561 |
Commuting
| Mean Commute Time | 24.6 minutes |
| Work from Home | 17.4% |
| 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 Sussex, Wisconsin.