| Place Name | Onalaska (town) |
| Place Type | Town |
| ZIP Code(s) | 54603 54636 54650 54669 |
| County | La Crosse County |
| Area Code(s) | 608 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 5,788 |
| Majority Ethnicity | White 95.12% |
| Metro/Micro Stats Area | La Crosse-Onalaska, WI-MN |
| US Congressional District(s) | Wisconsin 3rd |
| State Assembly Districts | 94 |
| State Senate Districts | 32 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.12% |
| African American | 0.99% |
| Hispanic | 0.78% |
| Asian | 1.71% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.4% |