Average Depth: 11.19 feet
Shoreline Length: 4.2 miles
Boat Fishing? Unrestricted, over 10 hp no wake speed
Boat Ramps? Yes
Boat Rental? Yes
There are no zebra mussels in this lake.
Lake Status Summary
The largemouth bass population has turned around in the past two years. In 2015, 12% of the sample was greater than 15 inches. The largest largemouth bass in the 2015 sample was 18.5 inches long and weighed 3.5 pounds. Site Regulation: 1 Fish Daily Creel Limit (15" Minimum Length Limit)
Muskie were stocked in Pierce Lake to provide a trophy predator species. Muskie are stocked at a rate of 1 fish per acre annually. The largest fish sampled in 2015 was a 39 inch female that weighed 20.5 pounds. Site Regulation: 1 Fish Daily creel Limit (48" Minimum Length Limit)
Smallmouth bass are present, but in low numbers. Site Regulation: 1 Fish Daily Creel Limit (15" Minimum Length Limit)
The Walleye population is strong with 80% of the fish sampled in 2015 over the 14 inch minimum length limit. Previous creel samples showed 58 pounds of Walleye per acre harvested, which is the highest harvest pounds of any northern Illinois lakes. Walleye are stocked annually at a rate of 50 per acre. Site Regulation: 6 Fish Daily Creel Limit (14" Minimum Length Limit)
Location: Pierce Lake is situated in Rock Cut State Park on the northeast side of Rockford.
Description: Pierce Lake was constructed in 1960 by damming Willow Creek. Pierce Lake is 162 surface acres with a maximum depth of 36 feet and an average depth of 12.5 feet. It has a watershed of 8,150 acres and 4.9 miles of shoreline.
History and Status of the Sport Fishery: Pierce Lake receives an annual stocking of channel catfish, walleye and muskie. Largemouth and smallmouth bass are stocked when weak year classes have been identified.
Additional Lake Information: A two-lane concrete boat ramp with car/trailer parking is available. Any size engine is allowed on Pierce Lake; however, engines over 10hp can only operate at no-wake speed. The concessionaire offers boat rentals, bait, and tackle and has a restaurant. Concession Phone: 815-885-4740.
Two-Pole and Line Fishing Only with the exception of carp, which can be taken by bow and arrow from May 1st to June 30th.
Contact Information: Rock Cut State Park: 815-885-3311IDNR Fisheries County Biologist: 630-360-4185