Lakes / Illinois / Winnebago County
Lakes in Winnebago County, Illinois
6 lakes counted in Winnebago County - the largest is Lake Summerset at 271.32 acres.
6
Lakes Counted
271.32 acres
Largest - Lake Summerset
Winnebago County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Summerset | Winnebago | 271.32 acres | - |
| 2 | Pierce Lake | Winnebago | 151.48 acres | - |
| 3 | Victoria Lake | Winnebago | 74.63 acres | - |
| 4 | Windsor Lake | Winnebago | 36.32 acres | - |
| 5 | Pearl Lake | Winnebago | 31.38 acres | - |
| 6 | Levings Lake | Winnebago | 26.44 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.