Lakes / Illinois / Lake County / Bluff Lake
Bluff Lake, Lake County, Illinois
101.07 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
42.45 degrees N, 88.13 degrees W - Lake 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 Bluff Lake Stacks Up
- Larger than 61% of the 511 lakes counted in Illinois.
- About 47 miles from Chicago, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Spring Lake | Lake | 0.7 mi | 32.62 acres |
| Lake Marie | Lake | 1.0 mi | 595.03 acres |
| Petite Lake | Lake | 1.5 mi | 195.71 acres |
| Grass Lake | Lake | 1.8 mi | 1,582.22 acres |
| Antioch Lake | Lake | 1.9 mi | 87.72 acres |
| Channel Lake | Lake | 2.2 mi | 365.47 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Bluff Lake
How Big Is Bluff Lake?
Bluff Lake covers 101.07 acres in Lake County, Illinois.
What Is the Largest Lake in Lake County?
Nippersink Lake is the largest lake in Lake County, at 2,492.93 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 121650562). Verified October 30, 2026.