Blue Lake
About Blue Lake
Blue Lake is a 296-acre lake near Princeton in Isanti County, Minnesota. It reaches 31 feet at its deepest point, and has roughly 6.4 miles of shoreline. DNR surveys put average water clarity at about 4.4 feet.
Minnesota DNR fisheries surveys list 13 fish species here, including walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed. The DNR has stocking records for the lake, so check the stocking report for the most recent species and year classes. The most recent fisheries survey on file dates to 2025.
There are 2 public boat launches (concrete surface) managed by the township.
Plan Your Visit to Blue Lake
- 296 acres, up to 31 feet deep, near Princeton
- 2 public boat launches (concrete) — managed by the township
- Game fish on the DNR survey: walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed
- Average water clarity around 4.4 feet
Access & Fees
- Public access
- 2 public boat launches (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- township
Conditions
- Surface area
- 296 acres
- Max depth
- 31 ft
- Shoreline
- 6.4 mi
- Water clarity
- 4.4 ft
- Shallows (under 15 ft)
- 134 acres
Rules & Regulations
- A Minnesota fishing license is required for anglers 16 and older
- Drain plugs must be out and all water drained before leaving any access; remove aquatic plants from boats and trailers
- Children under 10 must wear a life jacket on a boat that is underway
Facilities
- 2 public boat launches (concrete)
Best For
- Walleye fishing
- Ice fishing
- Ice is never completely safe — check thickness yourself before walking or driving on any lake
Angler's Report
Minnesota DNR LakeFinder- Species on survey
- 13
- Game fish
- 7
- Stocked
- Yes
- Last DNR survey
- 2025
- Special regulations
- No
- Fishing pier
- No
- Ice fishing
- Yes
- Boat launch
- Yes
Fishing data: Minnesota Department of Natural Resources. Regulations change — confirm with the current DNR fishing regulations.
Activities
Amenities
Fish Species
Plan your trip to Blue Lake
Compare Blue Lake against the top-ranked lakes nearby, then map your route.
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See how Blue Lake ranks among ice fishing lakes nearby.
Nearby Lakes
Sandy Lake
53 out of 100 Lake ScoreSherburne · Crown64 acres
1.1 miles away
West Hunter Lake
29 out of 100 Lake ScoreSherburne · Crown61 acres
3.3 miles away
Fremont Lake
42 out of 100 Lake ScoreSherburne · Zimmerman493 acres
4 miles away
Elk Lake
47 out of 100 Lake ScoreSherburne · Zimmerman362 acres
6.2 miles away
Green Lake
54 out of 100 Lake ScoreIsanti · Princeton833 acres
7.2 miles away
Long Lake
48 out of 100 Lake ScoreIsanti · Isanti387 acres
7.5 miles away
Frequently Asked Questions
Where is Blue Lake?
Blue Lake is in Isanti County, Minnesota, near Princeton. It covers 296 acres and reaches 31 feet deep.
How big and how deep is Blue Lake?
Blue Lake covers 296 acres with about 6.4 miles of shoreline. Its maximum depth is 31 feet.
What fish can you catch at Blue Lake?
Minnesota DNR surveys list Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill, Pumpkinseed, and Yellow Perch and other species. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Blue Lake?
Yes. Blue Lake has 2 public boat launches (concrete), managed by the township. DNR public water accesses are free to use.
Can you swim at Blue Lake?
There is no mapped public swim beach at Blue Lake. Minnesota's public waters are open to swimming where you have legal access, but there are no lifeguards or water-quality monitoring away from designated beaches.
Is Blue Lake stocked?
Yes. The Minnesota DNR has stocking records for Blue Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.