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Lakes / Idaho / Power County

Lakes in Power County, Idaho

2 lakes counted in Power County - the largest is American Falls Reservoir at 55,319.78 acres.

2
Lakes Counted
55,319.78 acres
Largest - American Falls Reservoir

Power County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.

All Counted Lakes

#LakeCountySurface AreaMax Depth
1American Falls ReservoirPower55,319.78 acres-
2Bonanza LakePower30.64 acres-
Find a Lake in Power CountyLargest Lakes
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.