Walleye lake, Northern pike lake, Bass lake, Crappie lake, Sunfish lake

Island Lake

Public accessStocked 2025

Island Lake is a 616-acre lake in Mahnomen County, 43 feet at its deepest. The DNR last surveyed its fish in 2025. Recorded species include walleye, northern pike, largemouth bass and crappie.

Details

DNR lake ID
44003800
County
Mahnomen
Surface area
616 acres
Maximum depth
43 feet
Shallow water (littoral) area
331 acres, 54% of the lake
Shoreline
9.4 miles
Average water clarity
6.7 feet (Secchi disk, 4 readings)
Nearest town (DNR)
Lengby
Latest DNR fish survey
July 2025, standard survey
Surveys on record
13, since 1953
Game fish caught in the 2025 survey
bluegill 733, yellow perch 459, pumpkinseed 126, black crappie 125, northern pike 106, walleye 34, rock bass 18, largemouth bass 4
Fish species recorded
black crappie, bluegill, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, walleye, yellow perch, and 10 other species
Stocked in 2025
walleye fingerlings (11,730); walleye yearlings (500); walleye fry (45,000)
Stocked in 2023
walleye fingerlings (1,445); walleye yearlings (672); walleye fingerlings (12,000)
Stocked in 2021
walleye adults (1,701); walleye fingerlings (3,888)
Stocking years on record
5 of the last 10 (2017 to 2025)
Island Lake Public Water Access Site
trailer launch, concrete slab ramp, 1 dock, 10 trailer spaces, run by DNR Division of Parks and Trails
Fish consumption
Follow the statewide guidelines; fish from this lake have been tested
Size
500 to 1,999 acres
Deepest point
30 to 59 feet
Public access
Yes
Stocked in the last 3 years
Yes

Sources

Survey catches show what DNR nets and electrofishing found on the survey date, not how the fishing is today. Check the current regulations and the Department of Health advice before you keep fish, and confirm access conditions before you tow a boat.