Onalaska is located in Wisconsin. Onalaska, Wisconsin has a population of 18,683. Onalaska is more family-centric than the surrounding county with 26% households with children. The county percentage for households with children is 24%.
The median household income in Onalaska, Wisconsin is $64,174. The median household income for the surrounding county is $61,171 compared to the national median of $66,222. The median age of people living in Onalaska is 40.3 years.
The average high temperature in July is 85.2 degrees, with an average low temperature in January of 6.3 degrees. The annual precipitation is 32.36.