Fannie Lake
Isanti County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 30004300
DNR records show 6 stocking entries at Fannie Lake since 2017, most recently walleye fry in 2024 (308,000 fish).
- Fannie Lake has 6 DNR stocking records across 6 years (2017-2024): walleye (6).
- The most-stocked species by count is walleye: 1,848,000 fish on record.
- Maximum depth 33 ft; surface area 360 acres, 308 littoral acres, 6.0 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 7.8 ft.
- Fish species DNR lists here: black bullhead, black crappie, bluegill, bowfin (dogfish), green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, walleye, white sucker, yellow bullhead, and 1 more.
- 2 public accesses on the DNR list.
- Most recent DNR fish survey: (targeted survey).
- Isanti County, nearest town Cambridge; DNR lake number (DOW) 30004300.
Depth map
Bathymetric contours from the Minnesota DNR lake survey mapped 6/1/1951 (orig map); depths in feet. Simplified for the web; not for navigation.
Stocking history
| Year | Species | Size | Number | Pounds |
|---|---|---|---|---|
| 2024 | Walleye | fry | 308,000 | 2.7 |
| 2023 | Walleye | fry | 308,000 | 2.7 |
| 2022 | Walleye | fry | 308,000 | 2.8 |
| 2021 | Walleye | fry | 308,000 | 2.8 |
| 2019 | Walleye | fry | 308,000 | 2.6 |
| 2017 | Walleye | fry | 308,000 | 2.8 |
Field note · Minnesota stocks by year, not by truck day: walleye fry go in within weeks of ice-out, fingerlings and yearlings mostly in fall, and stream trout in spring and fall. A row here means the fish went in during that year; DNR adds the year's rows after the fact, so the current year can look empty until winter.
Public accesses
| Type | Owner | Where |
|---|---|---|
| concrete ramp | Minnesota DNR | - A state owned access is located off of State Hwy 95 on the NE end of the lake. Parking for 6 vehicles with trailers. |
| earthen ramp | county | - A county owned swimming beach is located on the east shore off of 323rd Ave. NE. |
DNR fish survey, 2022
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| Largemouth bass | Standard electrofishing | 70.31 | 40 | 1.09 |
| Bluegill | Standard gill nets | 42.83 | 257 | 0.11 |
| Yellow perch | Standard gill nets | 18.33 | 110 | 0.09 |
| Black crappie | Standard gill nets | 5.17 | 31 | 0.16 |
| Northern pike | Standard gill nets | 5.00 | 30 | 4.37 |
| Pumpkinseed | Standard gill nets | 4.50 | 27 | 0.12 |
| Yellow bullhead | Standard gill nets | 3.33 | 20 | 1.10 |
| Walleye | Standard gill nets | 2.50 | 15 | 4.80 |
| Black bullhead | Standard gill nets | 0.67 | 4 | 1.41 |
| Bluegill | Standard trap nets | 37.00 | 296 | 0.11 |
| Pumpkinseed | Standard trap nets | 6.25 | 50 | 0.26 |
| Yellow bullhead | Standard trap nets | 2.00 | 16 | 0.95 |
| Black crappie | Standard trap nets | 1.38 | 11 | 0.25 |
| Hybrid sunfish | Standard trap nets | 1.25 | 10 | 0.32 |
| Green sunfish | Standard trap nets | 0.25 | 2 | 0.06 |
| Bowfin (dogfish) | Standard trap nets | 0.25 | 2 | 3.83 |
| Black bullhead | Standard trap nets | 0.12 | 1 | 2.03 |
Catch per net (CPUE) is the DNR survey's count per gill net or trap net set; higher means more of that species were sampled, not a fishing forecast. Top species per gear shown; where we have no verified common name for a DNR code, the code itself is shown.
Fannie Lake is a 366-acre lake located in Isanti County that has been assigned to lake class 34. The lake is managed primarily for Northern Pike, Largemouth Bass, Black Crappie, and Bluegill. To assess the current population, a population assessment was conducted from June 27 to 30, 2022 with standard lake survey gillnets and trap nets. Electrofishing was done on June 1 to sample the Largemouth Bass population. The Walleye gillnet catch in 2022 was 15 fish, resulting in a catch rate of 2.5 per lift. This is the highest catch rate recorded for Walleye on this lake dating back to the 1996 survey. However, this is still a low number of Walleye and because Walleye numbers have been consistently low, Walleye fingerling stocking was discontinued after 2013. The management plan does call for Walleye fry to be stocked when surplus is available. Walleye fry were stocked in 2017, 2019, 2021, and 2022. The Walleye caught in the 2022 survey were large, with an average length of 23.7 inches, and ranged in size from 20.9 to 28.0 inches. This was also the largest average size of Walleye dating back to 1996 and the ages ranged from 10 to 14. All year classes corresponded to years when Walleye were stocked (either fry or fingerling), except age 13. As in past surveys, the Walleye population appears to be made up of mostly larger, older individuals at a low density. The Northern Pike gillnet catch was 5.0 per lift as compared to 13.5 per lift in 2013, so the population appears to be at a more normal level at the present time and meets the management goal of 5.0 per lift. When comparing the catch to the combined average 1996, 2001, and 2006 (6.5 per net) which seem to represent more typical catch rates it is still slightly low. Northern Pike sampled in gillnets ranged from 22.1 to 35.2 inches with an average length of 27.0 inches in 2022. The average gillnet catch length has been steadily increasing since 1996. Northern Pike ranged in age from 3 to 9 years old. Overall, the Northern Pike population seems to be maintaining itself near the management goal and the fish have been steadily increasing in average size over the past five surveys. Yellow Perch, primarily forage for both Northern Pike and Walleye, have historically fluctuated in abundance, but have never had a large presence in Fannie Lake. In 2022 the gillnet catch was 110 fish with a catch rate of 18.3 fish per net. This was the highest gillnet catch by number and rate dating back to the 1996 survey. Most of the fish in 2022 were between 6.0 and 6.5 inches with an average length of 6.4 inches ranging in size…
Minnesota DNR survey narrative, .
All Minnesota stockings · every Minnesota lake with a page · state CSV · this lake on DNR LakeFinder
Stocking rows, depths, accesses and survey figures are Minnesota DNR LakeFinder data as of 2026-09-02; contours are the DNR bathymetric survey. Regulations, slot limits and special rules are on the DNR page linked above, not here.
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