Lake Mary
About Lake Mary
Lake Mary is a 190-acre lake near Oster in Wright County, Minnesota. It reaches 46 feet at its deepest point, with an average depth of about 18 feet, and has roughly 2.3 miles of shoreline. DNR surveys put average water clarity at about 6.3 feet.
Minnesota DNR fisheries surveys list 13 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. The most recent fisheries survey on file dates to 2024.
No public water access is on record with the DNR, so getting on the water generally depends on a resort, private landing or permission from a shoreline owner. Ice typically goes out around April 9, based on 97 years of DNR ice-out records.
Plan Your Visit to Lake Mary
- 190 acres, up to 46 feet deep, near Oster
- No public access on record — access is through resorts, private landings or shoreline owners
- Game fish on the DNR survey: walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed
- Average water clarity around 6.3 feet
Access & Fees
- Public access
- No public access on record
- Launch fee
- —
Conditions
- Surface area
- 190 acres
- Max depth
- 46 ft
- Average depth
- 18 ft
- Shoreline
- 2.3 mi
- Water clarity
- 6.3 ft
- Shallows (under 15 ft)
- 85 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
No developed facilities on record. Plan to be self-sufficient.
- 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
- 7
- Stocked
- Yes
- Last DNR survey
- 2024
- Special regulations
- No
- Fishing pier
- No
- Ice fishing
- Yes
- Boat launch
- No
Fishing data: Minnesota Department of Natural Resources. Regulations change — confirm with the current DNR fishing regulations.
Ice-Out History
- Median ice-out
- April 9
- Years of record
- 97
- Earliest
- March 3, 1990
- Latest
- May 2, 2018
- Most recent
- April 19, 2023
See every lake on the ice-out tracker. Ice-out data: Minnesota DNR State Climatology Office.
Activities
Amenities
Fish Species
Plan your trip to Lake Mary
Compare Lake Mary against the top-ranked lakes nearby, then map your route.
Nearby Lakes
Dog Lake
38 out of 100 Lake ScoreWright · Oster97 acres
1 miles away
Emma Lake
43 out of 100 Lake ScoreWright · Howard Lake189 acres
1.7 miles away
Winsted Lake
58 out of 100 Lake ScoreMcLeod · Winsted382 acres
2.4 miles away
Lake Ann
55 out of 100 Lake ScoreWright · Howard Lake375 acres
2.5 miles away
Yaeger Lake
9 out of 100 Lake ScoreWright · Waverly111 acres
3.1 miles away
Dutch Lake
45 out of 100 Lake ScoreWright · Howard Lake162 acres
4.2 miles away
Frequently Asked Questions
Where is Lake Mary?
Lake Mary is in Wright County, Minnesota, near Oster. It covers 190 acres and reaches 46 feet deep.
How big and how deep is Lake Mary?
Lake Mary covers 190 acres with about 2.3 miles of shoreline. Its maximum depth is 46 feet and its average depth is about 18 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?
No. The DNR lists no public water access on Lake Mary.
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.
When does the ice go out on Lake Mary?
The median ice-out date is April 9, from 97 years of Minnesota DNR records. The earliest on record is March 3, 1990 and the latest is May 2, 2018.