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DIAMOND LAKE
Lake Information
County: Lake
Acreage: 153
Average Depth: 7.61 feet
Shoreline Length: 5.9 miles
Recreational Amenities
Boat Fishing? Unrestricted
Boat Ramps? Yes
Boat Rental? No
Skiing? Yes
Swimming? Yes
Picnicking? Yes
Camping? No
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There are zebra mussels in this lake.
Fish Stocking | |||
Year |
Species |
Size |
Count |
2023 |
Channel Catfish |
Non-vulnerable 8 - 10" |
758 |
2023 |
Muskellunge |
Adult |
100 |
Additional information for stocking on Diamond Lake
Fishing Outlook ( Full PDF Report )
Click here for a list of all reports.
Species |
Rank |
Fish Status |
Good | 4 Black Crappie were collected. Fish ranged from 8.4” to 9.5” long. Fishermen often keep crappie at least 9” long so there is a harvestable fishery present. Like bluegill, added predation should help “grow” the crappie population in the future. | |
Average | In 2021, 74 Bluegill were captured in 50 minutes of DC electrofishing. They ranged from 2.7” to 7.4”, 78% were longer than 6” and 12% were over 7” long. The expanding bass population and increasing muskie predation should help boost the size of panfish in Diamond Lake in the coming years. | |
Good | Annual stockings of 8” to 10” channel catfish maintains their presence. During this survey we collected 3 channel catfish ranging from 18.7” to 26.9”. Site Regulation: 6 fish daily creel limit. | |
Good | In 2021, 48 bass were collected in 50 minutes of DC electrofishing. Fish measured 3.7” to 20.1”, and weighed up to 4.7 lbs., 43% were over 12” long, 24% were over 14” long, and 19% were over 15” long. This size structure allows for quality angling opportunities and should create better pan fishing in the future. Site Regulation: 15” minimum length limit ; 3 fish daily creel limit. | |
Developing | Muskie have been stocked in this lake beginning in 2013. Site Regulation: 36" minimum length limit, 1 fish daily creel limit. | |
Location: Diamond Lake is located in northeastern Lake County, within the Village of Mundelein.
Description: A glacial origin lake, the majority of Diamond Lake bottom is owned by the Mundelein Park District, which it acquired in the late 1960s. Water exits the lake in the southeastern portion of the lake via a spillway that flows underground until it connects to Indian Creek. Diamond Lake is 153 acres; shoreline length 5.9 miles; watershed 686 acres (5 to 1); maximum depth 23 feet; average depth 7.6 feet. There are several ramps around the lake but only one is open to the public (fee required). It is a single, concrete boat ramp on the southeast end of the lake near the beach. No fishing boat rentals are available; a private bait shop is located 1 mile south of the ramp. No fish cleaning facilities are available.
History and Status of the Sport Fishery: Occasional fish surveys are conducted to evaluate stocking success and changes in the fishery. Herbicides are occasionally applied in high-use areas to maintain recreational boat access because the shoreline is generally shallow and Eurasian watermilfoil is present in the system.
Diamond Lake receives annual stockings of 8” to 10” Channel Catfish, 10” Northern Pike, and occasional stockings of 12” muskie (beginning in 2013).
Additional Lake Information: All fish species, two pole and line fishing only. The one public boat ramp on the southeast end of the lake near the beach requires a fee for use.
Site Regulations:
Channel Catfish: 6 fish per day creel limit.
Largemouth Bass: 15” minimum length limit; 3 per day creel limit.
Northern Pike: 24” minimum length limit; 3 per day creel limit.
Muskie: 36” minimum length; 1 fish per day
Contact Information: Mundelein Park District: 847-566-0650IDNR Fisheries Biologist, Andy Plauck815-675-2386 ext. 214
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