Onalaska is a city located in Washington. Onalaska has a 2020 population of 807. Onalaska is currently declining at a rate of 0.00% annually and its population has increased by 29.95% since the most recent census, which recorded a population of 621 in 2010. Onalaska reached it's highest population of 994 in 2014.
The average household income in Onalaska is $69,039 with a poverty rate of 0.00%. The median rental costs in recent years comes to - per month, and the median house value is $204,500. The median age in Onalaska is 35.7 years, 32.3 years for males, and 43.5 years for females. For every 100 females there are 122.3 males.