Lakes / Illinois / Johnson County / Little Cache Number 1 Reservoir
Little Cache Number 1 Reservoir, Illinois
33.61 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
37.50 degrees N, 88.87 degrees W - Johnson 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 Little Cache Number 1 Reservoir Stacks Up
- Larger than 18% of the 511 lakes counted in Illinois.
- About 24 miles from Carbondale, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Dutchman Lake | Johnson | 2.8 mi | 101.56 acres |
| Vienna City Lake | Johnson | 3.7 mi | 41.02 acres |
| Tall Tree Lake | Johnson | 4.0 mi | 49.67 acres |
| Lake of Egypt | Johnson | 6.9 mi | 2,129.02 acres |
| Vienna Correctional Center Lake | Johnson | 8.5 mi | 71.11 acres |
| Marion Country Club Lake | Williamson | 11 mi | 42.18 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Little Cache Number 1 Reservoir
How Big Is Little Cache Number 1 Reservoir?
Little Cache Number 1 Reservoir covers 33.61 acres in Johnson County, Illinois.
What Is the Largest Lake in Johnson County?
Lake of Egypt is the largest lake in Johnson County, at 2,129.02 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 41054341). Verified October 30, 2026.