Cottage Lake is a city located in Washington. Cottage Lake has a 2020 population of 22,677. Cottage Lake is currently declining at a rate of 0.00% annually and its population has increased by 0.81% since the most recent census, which recorded a population of 22,494 in 2010. Cottage Lake reached it's highest population of 23,955 in 2018.
The average household income in Cottage Lake is $208,892 with a poverty rate of 1.70%. The median rental costs in recent years comes to $1,992 per month, and the median house value is $798,200. The median age in Cottage Lake is 44.9 years, 45.2 years for males, and 44.6 years for females. For every 100 females there are 102.0 males.