Real Estate in Onalaska, WAOnalaska is located in Washington. Onalaska, Washington has a population of 611. Onalaska is less family-centric than the surrounding county with 22% households with children. The county percentage for households with children is 24%. The median household income in Onalaska, Washington is $45,959. The median household income for the surrounding county is $46,063 compared to the national median of $57,525. The median age of people living in Onalaska is 43.2 years. Onalaska EnvironmentThe average high temperature in July is 75.62 degrees, with an average low temperature in January of 29.38 degrees. The annual precipitation is 58.21. Onalaska MapOnalaska Real Estate officesReal Estate near OnalaskaNearby Cities |