Lakes / Illinois / Cumberland County / Lake Mattoon
Lake Mattoon, Illinois
907.62 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
39.36 degrees N, 88.47 degrees W - Cumberland County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Lake Mattoon Stacks Up
- Larger than 91% of the 511 lakes counted in Illinois.
- About 69 miles from Springfield, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Paradise | Coles | 4.8 mi | 173.96 acres |
| Wood Lake | Moultrie | 14 mi | 33.61 acres |
| Lake Pauline | Effingham | 15 mi | 34.1 acres |
| Lake Shelbyville | Shelby | 16 mi | 10,235.1 acres |
| Lake Sara | Effingham | 18 mi | 553.02 acres |
| Lake Charleston | Coles | 19 mi | 335.57 acres |
Straight-line distance between lake centers.
Facts and Figures
Largest Lakes in Illinois
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Carlyle Lake | Clinton | 22,796.77 acres | - |
| 2 | Mine Number 21 Reservoir | Franklin | 17,062.04 acres | - |
| 3 | Upper Peoria Lake | Woodford | 15,460.64 acres | - |
| 4 | Lake Shelbyville | Shelby | 10,235.1 acres | - |
| 5 | Crab Orchard Lake | Williamson | 7,292.57 acres | - |
All 511 Illinois lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 151829239). Verified October 30, 2026.