Lake Size: 21,600 acres
Shoreline Length (Miles): 50 Miles
Deepest Depth: 214 ft
Latitude: 47.616800
Longitude: -122.264800
Lake Level Above Sea Level: 16 ft (5 m)
Counties: King County

Information: Lake Washington received its present name in 1854 after Thomas Mercer suggested it be named after George Washington, as the new Washington Territory had been named the year before. The Duwamish called it "Lake Xacuabš" (Lushootseed: literally great-amount-of-water). Around 1900's the city began discharging sewage into Lake Washington. After significant pollution, the October 5, 1963 issue of the Post Intelligencer referred to the lake as "Lake Stinko". Since, Lake Washington has undergone major improvements, drastically improving the ecology and water quality, turning the water to twice as clear as it was in 1950., Kenmore Air operates passenger seaplane service at Kenmore Air Harbor at the northern end of the lake.