Lake Mary
About Lake Mary
Lake Mary is a 129-acre lake near Upsala in Todd County, Minnesota. It reaches 58 feet at its deepest point, and has roughly 4.5 miles of shoreline. DNR surveys put average water clarity at about 7.6 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. Special fishing regulations apply to sunfish, and they override the statewide limits. 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 Lake Mary
- 129 acres, up to 58 feet deep, near Upsala
- 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
- Special fishing regulations apply here and override the statewide limits
- Average water clarity around 7.6 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
- 129 acres
- Max depth
- 58 ft
- Shoreline
- 4.5 mi
- Water clarity
- 7.6 ft
- Shallows (under 15 ft)
- 39 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
- Yes
- Fishing pier
- No
- Ice fishing
- Yes
- Boat launch
- Yes
Special regulations on this lake
- Sunfish: Daily limit five.
Fishing data: Minnesota Department of Natural Resources. Regulations change — confirm with the current DNR fishing regulations.
Activities
Amenities
Fish Species
Plan your trip to Lake Mary
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Nearby Lakes
St. Anna Lake
57 out of 100 Lake ScoreStearns · Saint Rosa126 acres
3.3 miles away
Cedar Lake
72 out of 100 Lake ScoreMorrison · Upsala236 acres
3.3 miles away
Big Birch Lake
64 out of 100 Lake ScoreTodd · Grey Eagle2,107 acres
4 miles away
Mound Lake
64 out of 100 Lake ScoreTodd · Burtrum270 acres
4.4 miles away
Pine Lake
61 out of 100 Lake ScoreMorrison · Upsala178 acres
4.5 miles away
Bass Lake
63 out of 100 Lake ScoreTodd · Grey Eagle94 acres
4.7 miles away
Frequently Asked Questions
Where is Lake Mary?
Lake Mary is in Todd County, Minnesota, near Upsala. It covers 129 acres and reaches 58 feet deep.
How big and how deep is Lake Mary?
Lake Mary covers 129 acres with about 4.5 miles of shoreline. Its maximum depth is 58 feet.
What fish can you catch at Lake Mary?
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 Lake Mary?
Yes. Lake Mary has 1 public boat launch (concrete), managed by the Minnesota DNR. DNR public water accesses are free to use.
Can you swim at Lake Mary?
There is no mapped public swim beach at Lake Mary. 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 Lake Mary stocked?
Yes. The Minnesota DNR has stocking records for Lake Mary; species and numbers vary by year, so see the stocking report on DNR LakeFinder.
Are there special fishing regulations on Lake Mary?
Yes. Daily limit five.
Does Lake Mary have invasive species?
Yes. The DNR lists Lake Mary 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.