Lakes / Illinois / Rock Island County
Lakes in Rock Island County, Illinois
2 lakes counted in Rock Island County - the largest is Lake George at 150.73 acres.
2
Lakes Counted
150.73 acres
Largest - Lake George
Rock Island County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake George | Rock Island | 150.73 acres | - |
| 2 | Bowles Slough | Rock Island | 37.56 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.