Onalaska is located in La Crosse County, WI. The population is 17,740, making Onalaska the 2nd largest city in La Crosse County.
There are 5 public schools in Onalaska with an average Homefacts rating of B+. The total crime rate for Onalaska is low , and there are 30 registered sex offenders residing in the city. Unemployment in Onalaska is low and the median home sales price is $0. Detailed and up-to-date Onalaska property reports are available for any property address.
Cities near Onalaska include Medary, French Island and La Crosse.