Onalaska is a city in La Crosse County, Wisconsin, United States. The population was 18,803 at the 2020 census. It is a principal city of the La Crosse–Onalaska metropolitan area.
Midwest
Onalaska
La Crosse County, WI
Population
18,837
Walk Score
71 · Very Walkable
Median rent
$1,049
Median home value
$258,200
Founded
1851
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On the National Register
Historic districts
- Sand Lake Archeological District · listed 1984
- Swennes Archaeological District · listed 1985
Notable landmarks
- La Crosse County School of Agriculture and Domestic Economy · listed 1987
- Nichols, Frank Eugene, House · listed 1993
- Richards-Hauser Farmstead
- Sand Lake Site (47Lc44) · listed 1983
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