Lakes / Washington / Island Lake
Island Lake, Pacific County, Washington
53 acres
Surface Area
About 5 ft
Max Depth (Approximate)
18 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - Washington
46.43 degrees N, 124.04 degrees W - Pacific 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.
Depth Profile - Island Lake
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map. Max depth is approximate, from Washington Dept. of Ecology bathymetry.
How Island Lake Stacks Up
- The largest lake in Pacific County among those counted.
- About 68 miles from Olympia, as the crow flies.
Facts and Figures
Waterbody ID152317508
CountyPacific
Lake TypeLake
Coordinates46.4271, -124.0355
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: USGS NHD via WA Dept of Ecology lake data (ID 152317508); Washington Dept. of Ecology bathymetry (approximate max depth). Verified October 30, 2026.