Lakes / Illinois / McDonough County / Colmar Lake
Colmar Lake, Illinois
25.2 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
40.34 degrees N, 90.88 degrees W - McDonough 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 Colmar Lake Stacks Up
- Larger than 0% of the 511 lakes counted in Illinois.
- About 72 miles from Peoria, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Augusta Lake | Hancock | 6.1 mi | 26.69 acres |
| Argyle Lake | McDonough | 9.0 mi | 92.91 acres |
| Linda Lake | Hancock | 12 mi | 39.54 acres |
| Spring Lake | McDonough | 14 mi | 251.55 acres |
| Carthage Lake | Hancock | 16 mi | 42.5 acres |
| Vermont New Lake | McDonough | 22 mi | 33.85 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Colmar Lake
How Big Is Colmar Lake?
Colmar Lake covers 25.2 acres in McDonough County, Illinois.
What Is the Largest Lake in McDonough County?
Spring Lake is the largest lake in McDonough County, at 251.55 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 154232353). Verified October 30, 2026.