Decker Lake

Details

DNR lake ID

31093400

County

Itasca

Surface area

325 acres

Maximum depth

12 feet

Shallow water (littoral) area

327 acres, 101% of the lake

Shoreline

4.2 miles

Nearest town (DNR)

Rosy

Latest DNR fish survey

July 1985, re-survey

Surveys on record

2, since 1974

Game fish caught in the 1985 survey

yellow perch 70, northern pike 22, pumpkinseed 17

Fish species recorded

northern pike, pumpkinseed, walleye, yellow perch, and 4 other species

Decker Lake Public Water Access Site

trailer launch, gravel ramp, 2 trailer spaces, run by DNR Division of Parks and Trails

Fish consumption

Follow the statewide guidelines; fish from this lake have not been tested

Size

100 to 499 acres

Deepest point

Under 15 feet

Public access

Yes

Sources

• Minnesota DNR LakeFinder
  Checked September 24, 2026
• Minnesota DNR Public Water Access Sites
  Checked September 24, 2026

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.