Lakes / Illinois / Mason County
Lakes in Mason County, Illinois
19 lakes counted in Mason County - the largest is Quiver Lake at 2,926.49 acres.
19
Lakes Counted
2,926.49 acres
Largest - Quiver Lake
Mason County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Quiver Lake | Mason | 2,926.49 acres | - |
| 2 | Cross Slough | Mason | 2,775.73 acres | - |
| 3 | Lake Chautauqua | Mason | 2,723.3 acres | - |
| 4 | Jack Lake | Mason | 1,500.58 acres | - |
| 5 | Crane Lake | Mason | 797.66 acres | - |
| 6 | Matanzas Lake | Mason | 437.25 acres | - |
| 7 | Otter Lake | Mason | 301.22 acres | - |
| 8 | Moscow Lake | Mason | 249.33 acres | - |
| 9 | River Swale | Mason | 192.83 acres | - |
| 10 | Bath Lake | Mason | 149.75 acres | - |
| 11 | Ingram Lake | Mason | 118.86 acres | - |
| 12 | Eagle Lake | Mason | 112.19 acres | - |
| 13 | Wilcox Lake | Mason | 51.65 acres | - |
| 14 | Patterson Bay | Mason | 50.66 acres | - |
| 15 | Wolf Lake | Mason | 35.09 acres | - |
| 16 | Sand Lake | Mason | 32.62 acres | - |
| 17 | Chain Lake | Mason | 30.15 acres | - |
| 18 | Liverpool Lake | Mason | 26.51 acres | - |
| 19 | Mound Lake | Mason | 26.19 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.