Lakes / Illinois / Jefferson County
Lakes in Jefferson County, Illinois
6 lakes counted in Jefferson County - the largest is Lake Jaycee at 98.35 acres.
6
Lakes Counted
98.35 acres
Largest - Lake Jaycee
Jefferson County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Jaycee | Jefferson | 98.35 acres | - |
| 2 | Illinois Central Reservoir | Jefferson | 91.43 acres | - |
| 3 | Raw Water Reservoir | Jefferson | 87.97 acres | - |
| 4 | Miller Lake | Jefferson | 81.54 acres | - |
| 5 | East Lake Impoundment | Jefferson | 45.22 acres | - |
| 6 | Superior Lake | Jefferson | 35.34 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.