Lakes / Illinois / Adams County / Big Lake
Big Lake, Adams County, Illinois
54.86 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
39.87 degrees N, 91.41 degrees W - Adams 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 40% of the 511 lakes counted in Illinois.
- About 94 miles from Springfield, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Snyder Lake | Adams | 1.2 mi | 28.66 acres |
| Sand Lake | Adams | 1.4 mi | 73.64 acres |
| Bluebill Lake | Adams | 2.3 mi | 34.1 acres |
| Goose Lake | Adams | 8.8 mi | 71.41 acres |
| Trester Lake | Pike | 18 mi | 38.55 acres |
| Camp Saukenauk Lake | Adams | 22 mi | 33.06 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Big Lake
How Big Is Big Lake?
Big Lake covers 54.86 acres in Adams County, Illinois.
What Is the Largest Lake in Adams County?
Sand Lake is the largest lake in Adams County, at 73.64 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 144562798). Verified October 30, 2026.