Lakes / Iowa / Winnebago County
Lakes in Winnebago County, Iowa
1 lakes counted in Winnebago County - the largest is Harmon Lake at 41 acres.
1
Lakes Counted
41 acres
Largest - Harmon Lake
Winnebago County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Harmon Lake | Winnebago | 41 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.