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Lakes / Oregon / Harney County / Malheur Lake

Malheur Lake, Harney County, Oregon

192 acres
Surface Area

Where It Sits, and How Deep It Goes

Locator - Oregon

PortlandBendMalheur LakeHarney Co.

43.44 degrees N, 118.74 degrees W - Harney County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.

How Malheur Lake Stacks Up

Lakes Nearby

LakeCountyDistanceSurface Area
Malheur SloughHarney2.8 mi123 acres
Bennett LakeHarney7.6 mi30 acres
Malheur LakeHarney9.0 mi27,971 acres
Alder Creek ReservoirHarney15 mi32 acres
Corcoran ReservoirHarney15 mi47 acres
Hunter Ranch ReservoirHarney17 mi57 acres

Straight-line distance between lake centers.

Facts and Figures

Waterbody ID146960017
CountyHarney
Lake TypeLake
Coordinates43.4431, -118.7449

Questions About Malheur Lake

How Big Is Malheur Lake?

Malheur Lake covers 192 acres in Harney County, Oregon.

What Is the Largest Lake in Harney County?

Harney Lake is the largest lake in Harney County, at 31,290 acres.

Largest Lakes in Oregon

#LakeCountySurface AreaMax Depth
1Upper Klamath LakeKlamath62,095 acres-
2Lake UmatillaMorrow50,042 acres-
3Lake AbertLake37,137 acres-
4Summer LakeLake31,602 acres-
5Harney LakeHarney31,290 acres-

All 642 Oregon lakes ranked by surface area

Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 146960017). Verified October 30, 2026.