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Lakes / Washington / Bonaparte Lake

Bonaparte Lake, Washington

151 acres
Surface Area
About 110 ft
Max Depth (Approximate)
3,560 ft
Surface Elevation

Where It Sits, and How Deep It Goes

Locator - Washington

OlympiaSeattleBonaparte LakeOkanogan Co.

48.80 degrees N, 119.05 degrees W - Okanogan 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 - Bonaparte Lake

0 ft - SurfaceMax Depth (Approx.) - About 110 ftA Typical Shallow Lake - Under 20 ft Deep

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 Bonaparte Lake Stacks Up

Fish Species

Brook troutKokaneeLake troutRainbow troutSmallmouth bassTiger trout

Species recorded for this lake. Presence only - no abundance ratings.

Facts and Figures

Waterbody ID147577236
CountyOkanogan
Lake TypeLake
Coordinates48.8001, -119.0544

Largest Lakes in Washington

#LakeCountySurface AreaMax Depth
1Franklin D Roosevelt LakeFerry71,323 acres-
2Lake UmatillaKlickitat50,042 acres-
3Lake ChelanChelan32,677 acresAbout 1,500 ft
4Banks LakeGrant26,879 acres-
5Lake WallulaBenton26,343 acres-
Sources: Washington DFW; USGS NHD via WA Dept of Ecology lake data (ID 147577236); Washington Dept. of Ecology bathymetry (approximate max depth). Verified October 30, 2026.