
Liberty Lake
- County:
- Spokane County
- County Seat:
- No
- Area (mi²):
- 6.344
- State:
- Washington
Liberty Lake is a city located in Spokane County, Washington. Liberty Lake has a 2025 population of 13,888. Liberty Lake is currently growing at a rate of 2.59% annually and its population has increased by 14.43% since the most recent census, which recorded a population of 12,137 in 2020.
The average household income in Liberty Lake is $142,219 with a poverty rate of 5.2%. The median age in Liberty Lake is 37.4 years: 37.9 years for males, and 36.6 years for females.