Lakes / Illinois / Winnebago County / Pierce Lake
Pierce Lake, Illinois
151.48 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
42.35 degrees N, 88.98 degrees W - Winnebago 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 Pierce Lake Stacks Up
- Larger than 70% of the 511 lakes counted in Illinois.
- About 8 miles from Rockford, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Windsor Lake | Winnebago | 3.0 mi | 36.32 acres |
| Candlewick Lake | Boone | 5.6 mi | 183.58 acres |
| Victoria Lake | Winnebago | 9.3 mi | 74.63 acres |
| Pearl Lake | Winnebago | 9.5 mi | 31.38 acres |
| Levings Lake | Winnebago | 10 mi | 26.44 acres |
| Lake Summerset | Winnebago | 22 mi | 271.32 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Pierce Lake
How Big Is Pierce Lake?
Pierce Lake covers 151.48 acres in Winnebago County, Illinois.
What Is the Largest Lake in Winnebago County?
Lake Summerset is the largest lake in Winnebago County, at 271.32 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 145607036). Verified October 30, 2026.