Lakes in Hancock County, Iowa
5 lakes counted in Hancock County - the largest is Eagle Lake at 434 acres.
5
Lakes Counted
434 acres
Largest - Eagle Lake
Hancock County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Eagle Lake | Hancock | 434 acres | - |
| 2 | Crystal Lake | Hancock | 260 acres | - |
| 3 | East Twin Lake | Hancock | 222 acres | - |
| 4 | West Twin Lake | Hancock | 105 acres | - |
| 5 | Lake George | Hancock | 45 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.