Lakes / Illinois / Cook County / Saganashkee Slough
Saganashkee Slough, Illinois
359.29 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
41.69 degrees N, 87.89 degrees W - Cook 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 Saganashkee Slough Stacks Up
- Larger than 84% of the 511 lakes counted in Illinois.
- About 19 miles from Chicago, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Maple Lake | Cook | 1.4 mi | 57.08 acres |
| Longjohn Slough | Cook | 1.4 mi | 53.13 acres |
| Tampier Slough | Cook | 2.7 mi | 53.13 acres |
| Tampier Lake | Cook | 3.2 mi | 121.08 acres |
| Orland Lake | Cook | 3.9 mi | 273.39 acres |
| Goose Lake | Cook | 6.5 mi | 25.7 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Saganashkee Slough
How Big Is Saganashkee Slough?
Saganashkee Slough covers 359.29 acres in Cook County, Illinois.
What Is the Largest Lake in Cook County?
Lake Calumet is the largest lake in Cook County, at 591.91 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 109991096). Verified October 30, 2026.