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Lakes / Iowa / Marion County

Lakes in Marion County, Iowa

1 lakes counted in Marion County - the largest is Lake Red Rock at 8,619 acres.

1
Lakes Counted
8,619 acres
Largest - Lake Red Rock

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

All Counted Lakes

#LakeCountySurface AreaMax Depth
1Lake Red RockMarion8,619 acres-
Find a Lake in Marion CountyLargest Lakes
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.