Onalaska is located in La crosse county Wisconsin with a geographic area of 10.4 square miles. The total population in Onalaska is 18,814 with 47.0% male and 53.0% female. Children under age 5 represent 5.0% of the population, under age 18 equal 22.0% of the population and over age 65 is 22.9% of the population. The median household income is $66,295, per capita income is $42,005. There are a total of 8,108 housing units with 63.4% owner occupied. Education includes 20.1% of residents that are high school graduates and 38.4% with a bachelor's degree or higher. The average temperature in Onalaska in the summer is 72 degrees, and in the winter 17 degrees.
