Loon Lake
About Loon Lake
Loon Lake is an 809-acre lake near Lake Crystal in Blue Earth County, Minnesota. It reaches 7 feet at its deepest point, and has roughly 5.3 miles of shoreline. DNR surveys put average water clarity at about 1.6 feet, so expect stained or algae-tinted water in summer.
Minnesota DNR fisheries surveys list 13 fish species here, including walleye, northern pike, black crappie, white crappie, bluegill, and yellow perch. 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 2022.
There is one public boat launch (concrete surface) managed by the Minnesota DNR.
Plan Your Visit to Loon Lake
- 809 acres, up to 7 feet deep, near Lake Crystal
- 1 public boat launch (concrete) — managed by the Minnesota DNR
- Game fish on the DNR survey: walleye, northern pike, black crappie, white crappie, bluegill, and yellow perch
- Average water clarity around 1.6 feet — expect green or stained water by midsummer
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- Minnesota DNR
Conditions
- Surface area
- 809 acres
- Max depth
- 7 ft
- Shoreline
- 5.3 mi
- Water clarity
- 1.6 ft
- Shallows (under 15 ft)
- 809 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
- Low-clarity lakes are prone to summer algae blooms; keep dogs out of green, scummy water
- 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
- 6
- Stocked
- Yes
- Last DNR survey
- 2022
- 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 Loon Lake
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Nearby Lakes
Lake Crystal
49 out of 100 Lake ScoreBlue Earth · Lake Crystal379 acres
1.5 miles away
Mills Lake
29 out of 100 Lake ScoreBlue Earth · Lake Crystal237 acres
1.8 miles away
Fedji Lake
29 out of 100 Lake ScoreWatonwan · Perth172 acres
10.4 miles away
Lake Ida
31 out of 100 Lake ScoreBlue Earth · Amboy138 acres
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Eagle Lake
34 out of 100 Lake ScoreBlue Earth · Eagle Lake898 acres
15.5 miles away
Lura Lake
63 out of 100 Lake ScoreBlue Earth · Mapleton1,359 acres
17.7 miles away
Frequently Asked Questions
Where is Loon Lake?
Loon Lake is in Blue Earth County, Minnesota, near Lake Crystal. It covers 809 acres and reaches 7 feet deep.
How big and how deep is Loon Lake?
Loon Lake covers 809 acres with about 5.3 miles of shoreline. Its maximum depth is 7 feet.
What fish can you catch at Loon Lake?
Minnesota DNR surveys list Walleye, Northern Pike, Black Crappie, White Crappie, Bluegill, and Yellow Perch and other species. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Loon Lake?
Yes. Loon Lake has 1 public boat launch (concrete), managed by the Minnesota DNR. DNR public water accesses are free to use.
Can you swim at Loon Lake?
There is no mapped public swim beach at Loon 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 Loon Lake stocked?
Yes. The Minnesota DNR has stocking records for Loon Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.