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Lake Information

County: Williamson

Acreage: 60

Recreational Amenities

Boat Fishing? 10hp

Boat Ramps? Yes

Boat Rental? No

Skiing? No

Swimming? Yes

Picnicking? Yes

Camping? No

There are no zebra mussels in this lake.

Lake Status Summary  ( Full PDF Report )

Click here for a list of all reports.



Fish Status


Very Good

Channel catfish are generally not a large component of the annual Mermet Lake electrofishing sample, and 2022 followed this trend (11/hr). Annual channel catfish stockings help support a fishery which is very popular with the angling public.



Channel catfish were collected at a rate of 24 per hour of electrofishing during the 2022 survey, which was up from the previous sample. These fish ranged from 19 to 24 inches in length, and their condition was excellent. The channel catfish population is normally maintained by stocking every other year, but an additional 1,000 non-vulnerable channel catfish were stocked in 2019 because of a hatchery surplus.



Crappie are generally very scarce, and both black (2/hr) and white crappie (17/hr) were collected at low rates. All crappie had substandard body condition



Abundance of largemouth bass in Herrin #1 Lake, based on electrofishing catch-per-unit-effort in 2022 was similar to previous years, collected at a rate of 156 per hour. Of these, 52% were over 12 inches, well within the management plan goal, and 28% were larger than the lake’s 15 inch minimum length limit. Bass body condition dipped slightly below the management plan goal range.


Very Good

Redear abundance was good in 2022 sampling of Herrin #1 Lake (24/hr). 85% of redear were greater than 8 inches and body condition was excellent, boding well for redear fishermen.

Location: Herrin #1 Lake is located on the southwest edge of Herrin, Illinois in Williamson County.

Description: Herrin #1 Lake is a 60-acre city-owned impoundment. The lake is partially surrounded by homes and a golf course and has an improved boat ramp.

History and Status of the Sport Fishery: A fairly significant oxygen-related fish kill occurred in Herrin #1 Lake in September 2010, and the fish community has rebounded well.

Additional Lake Information: Electric motors only. A city permit is required for accessing Herrin #1 Lake. Contact the city clerk at 618-942-3175 for more information.

Site Regulations:
Largemouth bass – 15 inch length limit and 3 per day creel limit
Channel catfish – 6 per day creel limit

Contact Information:
City Clerk
IDNR Fisheries Biologist, Luke Nelson