Lakes / Washington / Lake Washington
Lake Washington, Washington
21,992 acres
Surface Area
16 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - Washington
47.61 degrees N, 122.24 degrees W - King County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Washington DFW coordinates, not by eye. Schematic - not a survey map.
How Lake Washington Stacks Up
- Ranks #6 for surface area among the Washington lakes counted so far - 21,992 acres.
- The largest lake in King County among those counted.
- About 4 miles from Seattle, as the crow flies.
- 19 fish species on the WDFW list for this lake.
Fish Species
Black crappieBrown bullheadChinook salmonCoastal cutthroat trout (resident)Coho salmonCommon carpGreen sunfishKokaneeLargemouth bassLargescale suckerNorthern pikeminnowPeamouthPumpkinseed SunfishRock bassSmallmouth bassSockeye salmonTenchThreespine sticklebackYellow perch
Species recorded for this lake. Presence only - no abundance ratings.
Facts and Figures
Waterbody ID148900411
CountyKing
Lake TypeLake
Coordinates47.6109, -122.2427
Largest Lakes in Washington
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Franklin D Roosevelt Lake | Ferry | 71,323 acres | - |
| 2 | Lake Umatilla | Klickitat | 50,042 acres | - |
| 3 | Lake Chelan | Chelan | 32,677 acres | About 1,500 ft |
| 4 | Banks Lake | Grant | 26,879 acres | - |
| 5 | Lake Wallula | Benton | 26,343 acres | - |
Sources: Washington DFW; USGS NHD via WA Dept of Ecology lake data (ID 148900411). Verified October 30, 2026.