Lakes / Illinois / Franklin County
Lakes in Franklin County, Illinois
14 lakes counted in Franklin County - the largest is Mine Number 21 Reservoir at 17,062.04 acres.
14
Lakes Counted
17,062.04 acres
Largest - Mine Number 21 Reservoir
Franklin County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Mine Number 21 Reservoir | Franklin | 17,062.04 acres | - |
| 2 | New City Lake | Franklin | 205.53 acres | - |
| 3 | Lake Moses | Franklin | 159.63 acres | - |
| 4 | West Frankfort Reservoir | Franklin | 158.64 acres | - |
| 5 | Valier Lake | Franklin | 57.32 acres | - |
| 6 | Lake Benton | Franklin | 44.48 acres | - |
| 7 | Thompsonville Lake | Franklin | 43.98 acres | - |
| 8 | Sesser Lake | Franklin | 42.26 acres | - |
| 9 | Zeigler Reservoir | Franklin | 42.01 acres | - |
| 10 | Beaver Lake | Franklin | 40.28 acres | - |
| 11 | Christopher Lake | Franklin | 37.32 acres | - |
| 12 | Cambon Lake | Franklin | 36.08 acres | - |
| 13 | Lake Hamilton | Franklin | 33.11 acres | - |
| 14 | Hilyn Lake | Franklin | 28.66 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.