
Loon Lake
- County:
- Stevens County
- County Seat:
- No
- Area (mi²):
- 3.263
- State:
- Washington
Loon Lake is a CDP located in Stevens County, Washington. Loon Lake has a 2025 population of 682. Loon Lake is currently declining at a rate of -0.87% annually and its population has decreased by -1.02% since the most recent census, which recorded a population of 689 in 2020.
The average household income in Loon Lake is $83,568 with a poverty rate of 5.72%. The median age in Loon Lake is 57.3 years: 59.3 years for males, and 56.4 years for females.