  onalaska is a town in la crosse county, wisconsin, united states. the population was 5,623 at the 2010 census. the city of onalaska borders the town, as does the village of holmen. the cdp of brice prairie is located in the western part of the town of onalaska. the unincorporated community of midway is also located in the town. onalaska (town), wisconsin is part of the la crosse, wisconsin metropolitan statistical area. ==geography== according to the united states census bureau, the town has a total area of 44.9&nbsp;square miles (116.3&nbsp;kmÂ²), of which, 37.0&nbsp;square miles (95.8&nbsp;kmÂ²) of it is land and 7.9&nbsp;square miles (20.5&nbsp;kmÂ²) 
Towns_in_La_Crosse_County,_Wisconsin Towns_in_Wisconsin