Lakes / Illinois / Gallatin County / Big Lake
Big Lake, Gallatin County, Illinois
91.52 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
37.73 degrees N, 88.11 degrees W - Gallatin 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 Big Lake Stacks Up
- Larger than 58% of the 511 lakes counted in Illinois.
- The largest lake in Gallatin County among those counted.
- About 61 miles from Carbondale, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Fish Lake | Gallatin | 0.6 mi | 51.32 acres |
| Round Pond | Gallatin | 1.7 mi | 70.66 acres |
| Fehrer Lake | Gallatin | 1.9 mi | 26.37 acres |
| Hulda Lake | Gallatin | 4.1 mi | 37.52 acres |
| Eagle Number 1 Fresh Water Lake | Gallatin | 7.9 mi | 63.07 acres |
| Mud Lake | Gallatin | 9.7 mi | 36.08 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Big Lake
How Big Is Big Lake?
Big Lake covers 91.52 acres in Gallatin County, Illinois.
What Is the Largest Lake in Gallatin County?
Big Lake is the largest lake in Gallatin County, at 91.52 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 40198308). Verified October 30, 2026.