Lakes / Illinois / Calhoun County / Gilbert Lake
Gilbert Lake, Illinois
220.67 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
38.96 degrees N, 90.51 degrees W - Calhoun 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 Gilbert Lake Stacks Up
- Larger than 77% of the 511 lakes counted in Illinois.
- About 73 miles from Springfield, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Silver Lake | Calhoun | 1.5 mi | 270.83 acres |
| Royal Lake | Calhoun | 1.9 mi | 86.49 acres |
| Chickahominy Lake | Calhoun | 1.9 mi | 50.22 acres |
| Lower Stump Lake | Calhoun | 2.4 mi | 182.12 acres |
| Upper Stump Lake | Jersey | 4.3 mi | 840.65 acres |
| Long Lake | Jersey | 5.4 mi | 67.95 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Gilbert Lake
How Big Is Gilbert Lake?
Gilbert Lake covers 220.67 acres in Calhoun County, Illinois.
What Is the Largest Lake in Calhoun County?
Watson Lake is the largest lake in Calhoun County, at 353.61 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 156106559). Verified October 30, 2026.