Lakes / Illinois / Alexander County / Horseshoe Lake
Horseshoe Lake, Alexander County, Illinois
1,784.84 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
37.14 degrees N, 89.34 degrees W - Alexander 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 Horseshoe Lake Stacks Up
- Larger than 95% of the 511 lakes counted in Illinois.
- The largest lake in Alexander County among those counted.
- About 41 miles from Carbondale, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Grand Lake | Alexander | 3.9 mi | 76.11 acres |
| Bluff Lake | Union | 17 mi | 61.53 acres |
| Dongola Lake | Union | 18 mi | 63.51 acres |
| Anna State Hospital Reservoir | Union | 23 mi | 27.68 acres |
| Wolf Lake | Union | 27 mi | 59.8 acres |
| Tall Tree Lake | Johnson | 32 mi | 49.67 acres |
Straight-line distance between lake centers.
Facts and Figures
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 43337559). Verified October 30, 2026.