| Place Name | Onalaska |
| Place Type | City |
| ZIP Code(s) | 77360 |
| County | Polk County |
| Area Code(s) | 936 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 1,597 |
| Population Growth Rate (2010-19) | 71.20% |
| Majority Ethnicity | White 92.96% |
| US Congressional District(s) | Texas 36th |
| State House Districts | 19 |
| State Senate Districts | 3 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 92.96% |
| African American | 0.42% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.61% |