Green Lake
About Green Lake
Green Lake is an 833-acre lake near Princeton in Isanti County, Minnesota. It reaches 28 feet at its deepest point, and has roughly 4.6 miles of shoreline. It is the largest lake in Isanti County in the Minnesota DNR's LakeFinder records. DNR surveys put average water clarity at about 5.5 feet.
Minnesota DNR fisheries surveys list 15 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 is one public boat launch (concrete surface) managed by the Minnesota DNR. The lake is listed as infested with Eurasian watermilfoil — clean, drain and dry your boat and gear before leaving.
Plan Your Visit to Green Lake
- 833 acres, up to 28 feet deep, near Princeton
- 1 public boat launch (concrete) — managed by the Minnesota DNR
- Game fish on the DNR survey: walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed
- Average water clarity around 5.5 feet
- Listed as infested with Eurasian watermilfoil — clean, drain and dry before you leave
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- Minnesota DNR
Conditions
- Surface area
- 833 acres
- Max depth
- 28 ft
- Shoreline
- 4.6 mi
- Water clarity
- 5.5 ft
- Shallows (under 15 ft)
- 357 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
- 1 public boat launch (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
- 15
- 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 Green Lake
Compare Green Lake against the top-ranked lakes nearby, then map your route.
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See how Green Lake ranks among ice fishing lakes nearby.
Nearby Lakes
Spectacle Lake
60 out of 100 Lake ScoreIsanti · Cambridge246 acres
1.7 miles away
South Stanchfield Lake
42 out of 100 Lake ScoreIsanti · Carmody411 acres
4.8 miles away
North Stanchfield Lake
27 out of 100 Lake ScoreIsanti · Dalbo157 acres
5.7 miles away
Lake Francis
50 out of 100 Lake ScoreIsanti · Isanti269 acres
7.1 miles away
Sandy Lake
53 out of 100 Lake ScoreSherburne · Crown64 acres
7.1 miles away
Blue Lake
53 out of 100 Lake ScoreIsanti · Princeton296 acres
7.2 miles away
Frequently Asked Questions
Where is Green Lake?
Green Lake is in Isanti County, Minnesota, near Princeton. It covers 833 acres and reaches 28 feet deep.
How big and how deep is Green Lake?
Green Lake covers 833 acres with about 4.6 miles of shoreline. Its maximum depth is 28 feet.
What fish can you catch at Green 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 Green Lake?
Yes. Green Lake has 1 public boat launch (concrete), managed by the Minnesota DNR. DNR public water accesses are free to use.
Can you swim at Green Lake?
There is no mapped public swim beach at Green 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 Green Lake stocked?
Yes. The Minnesota DNR has stocking records for Green Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.
Does Green Lake have invasive species?
Yes. The DNR lists Green Lake as infested with Eurasian watermilfoil. State law requires you to clean off plants, pull the drain plug and drain all water before leaving the access.