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
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Red Rock | Marion | 8,619 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.