Lakes / Illinois / Pike County / Log Slough
Log Slough, Illinois
28.91 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
39.43 degrees N, 90.96 degrees W - Pike 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 Log Slough Stacks Up
- Larger than 9% of the 511 lakes counted in Illinois.
- About 74 miles from Springfield, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Halfmoon Lake | Pike | 0.7 mi | 66.72 acres |
| Han Slough | Pike | 0.8 mi | 50.66 acres |
| Towhead Lake | Pike | 2.0 mi | 67.21 acres |
| Upper Swan Lake | Pike | 2.1 mi | 99.09 acres |
| Twin Lakes | Pike | 3.4 mi | 49.17 acres |
| Horseshoe Lake | Pike | 9.0 mi | 146.78 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Log Slough
How Big Is Log Slough?
Log Slough covers 28.91 acres in Pike County, Illinois.
What Is the Largest Lake in Pike County?
Lake Pittsfield is the largest lake in Pike County, at 216.46 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 144568216). Verified October 30, 2026.