Lakes / Illinois / Montgomery County / Walton Lake
Walton Lake, Illinois
29.16 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
39.16 degrees N, 89.66 degrees W - Montgomery 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 Walton Lake Stacks Up
- Larger than 10% of the 511 lakes counted in Illinois.
- About 43 miles from Springfield, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Lou Yaeger | Montgomery | 5.8 mi | 1,369.33 acres |
| Mount Olive Lake | Macoupin | 6.4 mi | 39.54 acres |
| Old Mount Olive Reservoir | Macoupin | 6.6 mi | 35.34 acres |
| Fivemile Lake | Montgomery | 8.6 mi | 71.41 acres |
| Staunton Reservoir | Macoupin | 10.0 mi | 83.77 acres |
| Lake Hillsboro | Montgomery | 10 mi | 105.51 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Walton Lake
How Big Is Walton Lake?
Walton Lake covers 29.16 acres in Montgomery County, Illinois.
What Is the Largest Lake in Montgomery County?
Lake Lou Yaeger is the largest lake in Montgomery County, at 1,369.33 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 149994324). Verified October 30, 2026.