Lake Fannie

Details

DNR lake ID

30004300

County

Isanti

Surface area

360 acres

Maximum depth

33 feet

Shallow water (littoral) area

308 acres, 85% of the lake

Shoreline

6.0 miles

Average water clarity

7.8 feet (Secchi disk, 3 readings)

Latest DNR fish survey

June 2022, targeted survey

Surveys on record

10, since 1981

Game fish caught in the 2022 survey

bluegill 553, yellow perch 110, pumpkinseed 77, black crappie 42, largemouth bass 41, northern pike 31, walleye 15, hybrid sunfish 11

Fish species recorded

black crappie, bluegill, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, sunfish, walleye, yellow perch, and 13 other species

Stocked in 2024

walleye fry (308,000)

Stocked in 2023

walleye fry (308,000)

Stocked in 2022

walleye fry (308,000)

Stocking years on record

6 of the last 10 (2017 to 2024)

Fannie Lake (NE) Public Water Access Site

trailer launch, concrete slab ramp, 1 dock, 5 trailer spaces, run by DNR Division of Parks and Trails

Fannie Lake (E) Public Water Access Site

trailer launch, natural ramp, 4 trailer spaces, run by Isanti Township

Infested waters list

Eurasian watermilfoil

Fish consumption

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

Size

100 to 499 acres

Deepest point

30 to 59 feet

Public access

Yes

Stocked in the last 3 years

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.