Demographics & People — Ontario, Wisconsin
Population Overview
| Population (Census) | 380 |
| Estimated 2026 | ~500 |
| Median Age | 37.1 |
| Total Households | 160 |
| Family Households | 92 |
| Average Household Size | 2.38 |
| Diversity Index | 0.1851 (relatively homogeneous) |
Race & Ethnicity
| White | 339 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 39 |
Heritage & Ancestry
| Group | Count |
| German | 157 |
| Unclassified or not reported | 81 |
| Other groups | 72 |
| Norwegian | 39 |
| Hispanic: Hispanic or Latino | 39 |
| Scottish | 37 |
| English | 34 |
| Irish | 30 |
| Hispanic: Central American | 22 |
| Hispanic: Guatemalan | 22 |
Language
| English Only | 319 |
| Spanish | 37 |
| Population 5+ | 356 |
Veterans
| Veterans | 20 |
| Population 18+ | 278 |
Commuting
| Mean Commute Time | 24.6 minutes |
| Work from Home | 3.0% |
| 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 Ontario, Wisconsin.