Lakes in Clay County, Iowa
5 lakes counted in Clay County - the largest is Trumbull Lake at 1,061 acres.
5
Lakes Counted
1,061 acres
Largest - Trumbull Lake
Clay County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Trumbull Lake | Clay | 1,061 acres | - |
| 2 | Mud Lake | Clay | 283 acres | - |
| 3 | Dan Green Slough | Clay | 278 acres | - |
| 4 | Elk Lake | Clay | 256 acres | - |
| 5 | Round Lake | Clay | 26 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.