Lakes / Illinois / Warren County / Citizens Lake
Citizens Lake, Illinois
25.45 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
40.91 degrees N, 90.66 degrees W - Warren 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 Citizens Lake Stacks Up
- Larger than 0% of the 511 lakes counted in Illinois.
- About 58 miles from Peoria, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Warren | Warren | 6.6 mi | 42.26 acres |
| Lake Storey | Knox | 15 mi | 111.44 acres |
| Lake Bracken | Knox | 16 mi | 142.09 acres |
| Gladstone Lake | Henderson | 17 mi | 26.44 acres |
| Little Swan Lake | Warren | 18 mi | 228.33 acres |
| Rice Lake | Knox | 18 mi | 51.4 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Citizens Lake
How Big Is Citizens Lake?
Citizens Lake covers 25.45 acres in Warren County, Illinois.
What Is the Largest Lake in Warren County?
Little Swan Lake is the largest lake in Warren County, at 228.33 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 152593111). Verified October 30, 2026.