Willmert Lake
About Willmert Lake
Willmert Lake is a 335-acre lake near Fairmont in Martin County, Minnesota. It reaches 8 feet at its deepest point, and has roughly 3.3 miles of shoreline. DNR surveys put average water clarity at about 0.8 feet, so expect stained or algae-tinted water in summer.
Minnesota DNR fisheries surveys list 11 fish species here, including walleye, largemouth bass, black crappie, white crappie, 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 2019.
There is one public boat launch (asphalt surface) managed by the Minnesota DNR.
Plan Your Visit to Willmert Lake
- 335 acres, up to 8 feet deep, near Fairmont
- 1 public boat launch (asphalt) — managed by the Minnesota DNR
- Game fish on the DNR survey: walleye, largemouth bass, black crappie, white crappie, and yellow perch
- Average water clarity around 0.8 feet — expect green or stained water by midsummer
Access & Fees
- Public access
- 1 public boat launch (asphalt)
- Launch fee
- Free at DNR accesses
- Managed by
- Minnesota DNR
Conditions
- Surface area
- 335 acres
- Max depth
- 8 ft
- Shoreline
- 3.3 mi
- Water clarity
- 0.8 ft
- Shallows (under 15 ft)
- 335 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 (asphalt)
Best For
- 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
- 11
- Game fish
- 5
- Stocked
- Yes
- Last DNR survey
- 2019
- 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 Willmert Lake
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Nearby Lakes
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50 out of 100 Lake ScoreMartin · Fairmont252 acres
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Hall Lake
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Iowa Lake
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Bright Lake
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Budd Lake
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5.5 miles away
Frequently Asked Questions
Where is Willmert Lake?
Willmert Lake is in Martin County, Minnesota, near Fairmont. It covers 335 acres and reaches 8 feet deep.
How big and how deep is Willmert Lake?
Willmert Lake covers 335 acres with about 3.3 miles of shoreline. Its maximum depth is 8 feet.
What fish can you catch at Willmert Lake?
Minnesota DNR surveys list Walleye, Largemouth Bass, Black Crappie, White Crappie, and Yellow Perch and other species. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Willmert Lake?
Yes. Willmert Lake has 1 public boat launch (asphalt), managed by the Minnesota DNR. DNR public water accesses are free to use.
Can you swim at Willmert Lake?
There is no mapped public swim beach at Willmert 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 Willmert Lake stocked?
Yes. The Minnesota DNR has stocking records for Willmert Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.