Lakes / Illinois / Massac County / Loon Lake
Loon Lake, Massac County, Illinois
38.05 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
37.10 degrees N, 88.58 degrees W - Massac 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 Loon Lake Stacks Up
- Larger than 24% of the 511 lakes counted in Illinois.
- About 55 miles from Carbondale, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Allard Lake | Massac | 0.5 mi | 64.99 acres |
| Kinneman Lake | Massac | 3.0 mi | 107 acres |
| Hohman Lake | Massac | 5.8 mi | 82.04 acres |
| Cagle Pond | Massac | 18 mi | 35.83 acres |
| Sugar Creek Lake | Pope | 21 mi | 60.76 acres |
| Lake Glendale | Pope | 22 mi | 81.05 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Loon Lake
How Big Is Loon Lake?
Loon Lake covers 38.05 acres in Massac County, Illinois.
What Is the Largest Lake in Massac County?
Kinneman Lake is the largest lake in Massac County, at 107 acres.
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 41059285). Verified October 30, 2026.