Union Lake
About Union Lake
Union Lake is a 93-acre lake near South Haven in Wright County, Minnesota. It reaches 35 feet at its deepest point, and has roughly 1.5 miles of shoreline. DNR surveys put average water clarity at about 4.8 feet.
Minnesota DNR fisheries surveys list 15 fish species here, including walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed. 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 Union Lake
- 93 acres, up to 35 feet deep, near South Haven
- 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 4.8 feet
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- Minnesota DNR
Conditions
- Surface area
- 93 acres
- Max depth
- 35 ft
- Shoreline
- 1.5 mi
- Water clarity
- 4.8 ft
- Shallows (under 15 ft)
- 27 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
- 8
- Stocked
- No
- 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 Union Lake
Compare Union Lake against the top-ranked lakes nearby, then map your route.
Nearby Lakes
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West Lake Sylvia
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Moose Lake
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East Lake Sylvia
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Louisa Lake
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Frequently Asked Questions
Where is Union Lake?
Union Lake is in Wright County, Minnesota, near South Haven. It covers 93 acres and reaches 35 feet deep.
How big and how deep is Union Lake?
Union Lake covers 93 acres with about 1.5 miles of shoreline. Its maximum depth is 35 feet.
What fish can you catch at Union Lake?
Minnesota DNR surveys list Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill, Pumpkinseed, Yellow Perch, and Channel Catfish and other species. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Union Lake?
Yes. Union Lake has 1 public boat launch (concrete), managed by the Minnesota DNR. DNR public water accesses are free to use.
Can you swim at Union Lake?
There is no mapped public swim beach at Union 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 Union Lake stocked?
The DNR has no stocking report on file for Union Lake; its fishery is sustained by natural reproduction or has not been stocked recently.