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 2026 population of 13,353. Liberty Lake is currently growing at a rate of 2.2% annually and its population has increased by 10.02% since the most recent census, which recorded a population of 12,137 in 2020.