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Lakes / Montana / Johnson Lake

Johnson Lake, Gallatin County, Montana

16 acres
Surface Area
8,154.08 ft
Surface Elevation

Where It Sits, and How Deep It Goes

Locator - Montana

BillingsMissoulaJohnson LakeGallatin Co.

44.83 degrees N, 111.17 degrees W - Gallatin County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Montana Fish, Wildlife & Parks coordinates, not by eye. Schematic - not a survey map.

How Johnson Lake Stacks Up

Fish Species

Rainbow Trout

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

Facts and Figures

Waterbody ID52418526
CountyGallatin
Coordinates44.8325, -111.1699

Largest Lakes in Montana

#LakeCountySurface AreaMax Depth
1Fort Peck LakeValley233,053 acres-
2Flathead LakeLake122,132 acresAbout 380 ft
3Canyon Ferry LakeBroadwater32,773 acresAbout 170 ft
4Lake KoocanusaLincoln28,723 acres-
5Hungry Horse ReservoirFlathead23,577 acres-
Sources: Montana Fish, Wildlife & Parks lake data (ID 52418526). Verified October 30, 2026.