Walleye lake, Northern pike lake, Bass lake, Sunfish lake, Trout lake

Alder Lake

Alder Lake is a 529-acre lake in Cook County, 72 feet at its deepest. The DNR last surveyed its fish in 2025. Recorded species include walleye, northern pike, smallmouth bass and trout.

Details

DNR lake ID
16011400
County
Cook
Surface area
529 acres
Maximum depth
72 feet
Shallow water (littoral) area
132 acres, 25% of the lake
Shoreline
10.0 miles
Average water clarity
14.2 feet (Secchi disk, 8 readings)
Latest DNR fish survey
August 2025, targeted survey
Surveys on record
9, since 1984
Fish species recorded
green sunfish, hybrid sunfish, lake trout, northern pike, smallmouth bass, splake, walleye, yellow perch, and 1 other species
Fish consumption
Follow the northeast guidelines; fish from this lake have been tested
Size
500 to 1,999 acres
Deepest point
60 feet or more

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.

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