Lakes / Washington / Lake Sammamish
Lake Sammamish, Washington
4,852 acres
Surface Area
29 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - Washington
47.60 degrees N, 122.09 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 Sammamish Stacks Up
- About 11 miles from Seattle, as the crow flies.
- 11 fish species on the WDFW list for this lake.
Fish Species
Brown bullheadChinook salmonCoastal cutthroat trout (resident)Coho salmonKokaneeLargemouth bassPumpkinseed SunfishSmallmouth bassSockeye salmonThreespine sticklebackYellow perch
Species recorded for this lake. Presence only - no abundance ratings.
Facts and Figures
Waterbody ID148900372
CountyKing
Lake TypeLake
Coordinates47.6025, -122.0887
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 148900372). Verified October 30, 2026.