North Union Lake
About North Union Lake
North Union Lake is an 118-acre lake near Alexandria in Douglas County, Minnesota. It reaches 42 feet at its deepest point, with an average depth of about 5 feet, and has roughly 4.1 miles of shoreline. DNR surveys put average water clarity at about 15 feet, which is exceptionally clear for Minnesota.
Minnesota DNR fisheries surveys list 13 fish species here, including walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed. The most recent fisheries survey on file dates to 2018.
There is one public boat launch (concrete surface). The lake is listed as infested with zebra mussel — clean, drain and dry your boat and gear before leaving.
Plan Your Visit to North Union Lake
- 118 acres, up to 42 feet deep, near Alexandria
- 1 public boat launch (concrete)
- Game fish on the DNR survey: walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed
- Average water clarity around 15 feet — very clear
- Listed as infested with zebra mussel — clean, drain and dry before you leave
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
Conditions
- Surface area
- 118 acres
- Max depth
- 42 ft
- Average depth
- 5 ft
- Shoreline
- 4.1 mi
- Water clarity
- 15 ft
- Shallows (under 15 ft)
- 88 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
- Quiet paddling
- 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
- 9
- Stocked
- No
- Last DNR survey
- 2018
- 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 North Union Lake
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Nearby Lakes
Lake Louise
56 out of 100 Lake ScoreDouglas · Garfield214 acres
0.9 miles away
Brophy Lake
70 out of 100 Lake ScoreDouglas · Alexandria297 acres
1 miles away
Cowdry Lake
63 out of 100 Lake ScoreDouglas · Alexandria243 acres
1.3 miles away
Lake Darling
73 out of 100 Lake ScoreDouglas · Alexandria1,050 acres
1.6 miles away
Lake Henry
59 out of 100 Lake ScoreDouglas · Alexandria152 acres
2.7 miles away
Mina Lake
64 out of 100 Lake ScoreDouglas · Garfield411 acres
2.8 miles away
Frequently Asked Questions
Where is North Union Lake?
North Union Lake is in Douglas County, Minnesota, near Alexandria. It covers 118 acres and reaches 42 feet deep.
How big and how deep is North Union Lake?
North Union Lake covers 118 acres with about 4.1 miles of shoreline. Its maximum depth is 42 feet and its average depth is about 5 feet.
What fish can you catch at North Union Lake?
Minnesota DNR surveys list Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill, Pumpkinseed, Yellow Perch, Tullibee (Cisco), and Rock Bass and other species. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on North Union Lake?
Yes. North Union Lake has 1 public boat launch (concrete). DNR public water accesses are free to use.
Can you swim at North Union Lake?
There is no mapped public swim beach at North 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 North Union Lake stocked?
The DNR has no stocking report on file for North Union Lake; its fishery is sustained by natural reproduction or has not been stocked recently.
Does North Union Lake have invasive species?
Yes. The DNR lists North Union Lake as infested with zebra mussel. State law requires you to clean off plants, pull the drain plug and drain all water before leaving the access.