Lakes / Illinois / Calhoun County / Merida Lake
Merida Lake, Illinois
47.94 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
39.33 degrees N, 90.78 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 Merida Lake Stacks Up
- Larger than 34% of the 511 lakes counted in Illinois.
- About 68 miles from Springfield, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Brushy Lake | Greene | 9.9 mi | 34.84 acres |
| Han Slough | Pike | 11 mi | 50.66 acres |
| Log Slough | Pike | 12 mi | 28.91 acres |
| Godar Swamp | Calhoun | 12 mi | 78.33 acres |
| Towhead Lake | Pike | 12 mi | 67.21 acres |
| Halfmoon Lake | Pike | 12 mi | 66.72 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Merida Lake
How Big Is Merida Lake?
Merida Lake covers 47.94 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 144569327). Verified October 30, 2026.