Demographics & People — Oconomowoc, Wisconsin
Population Overview
| Population (Census) | 18,385 |
| Estimated 2026 | ~20,800 |
| Median Age | 42.6 |
| Total Households | 7,638 |
| Family Households | 4,706 |
| Average Household Size | 2.37 |
| Diversity Index | 0.0638 (relatively homogeneous) |
Race & Ethnicity
| White | 17,773 |
| Black or African American | 35 |
| Asian | 74 |
| Hispanic or Latino | 494 |
Heritage & Ancestry
| Group | Count |
| German | 9,185 |
| Unclassified or not reported | 2,976 |
| Irish | 2,237 |
| Polish | 2,089 |
| English | 1,343 |
| Other groups | 1,273 |
| Norwegian | 1,162 |
| Italian | 790 |
| French (except Basque) | 565 |
| Hispanic: Hispanic or Latino | 448 |
Language
| English Only | 16,838 |
| Spanish | 177 |
| Population 5+ | 17,411 |
Veterans
| Veterans | 882 |
| Population 18+ | 14,208 |
Commuting
| Mean Commute Time | 24.6 minutes |
| Work from Home | 18.2% |
| 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 Oconomowoc, Wisconsin.