Liberty Lake is a city located in Washington. With a 2020 population of 11,784, it is the 79th largest city in Washington and the 2761st largest city in the United States. Liberty Lake is currently growing at a rate of 3.64% annually and its population has increased by 55.24% since the most recent census, which recorded a population of 7,591 in 2010. Liberty Lake reached it's highest population of 11,784 in 2021. Spanning over 6 miles, Liberty Lake has a population density of 1,916 people per square mile.
The average household income in Liberty Lake is $99,666 with a poverty rate of 3.81%. The median rental costs in recent years comes to $1,132 per month, and the median house value is $286,200. The median age in Liberty Lake is 37.8 years, 35.7 years for males, and 41.2 years for females. For every 100 females there are 93.5 males.