Loon Lake, Washington
census-designated place
Sunset over Loon Lake
Loon Lake, Washington
Coordinates: 48°03′45″N 117°37′22″W / 48.06250°N 117.62278°W / 48.06250; -117.62278
Country	United States
State	Washington
County	Stevens
Elevation [1]	2,428 ft (740 m)
Population  (April 1, 2010)
• Total	783
Time zone	UTC-8 (Pacific (PST))
• Summer (DST)	UTC-7 (PDT)
ZIP code	99148
Area code	509
GNIS feature ID	2586737[1]

Loon Lake is an unincorporated community and census-designated place in Stevens County, Washington, United States. Loon Lake is located on the northern shore of Loon Lake 5 miles (8.0 km) east of Springdale. The community is served by U.S. Route 395 and Washington State Route 292. Loon Lake has a post office with ZIP code 99148.^[2]