Lakes / Illinois / Woodford County / Eureka Lake
Eureka Lake, Illinois
30.15 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
40.71 degrees N, 89.28 degrees W - Woodford 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 Eureka Lake Stacks Up
- Larger than 12% of the 511 lakes counted in Illinois.
- About 16 miles from Peoria, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Spin Lake | McLean | 10 mi | 26.93 acres |
| Maraldo Lake | Tazewell | 11 mi | 74.63 acres |
| Evergreen Lake | McLean | 14 mi | 877.22 acres |
| Upper Peoria Lake | Woodford | 15 mi | 15,460.64 acres |
| Lake Wildwood | Tazewell | 16 mi | 26.02 acres |
| Lutticken Lake | Tazewell | 18 mi | 43.98 acres |
Straight-line distance between lake centers.
Facts and Figures
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 152279713). Verified October 30, 2026.