Thompson Lake
About Thompson Lake
Thompson Lake is a 154-acre lake near Hoffman in Grant County, Minnesota. It reaches 22 feet at its deepest point, with an average depth of about 16 feet, and has roughly 2.4 miles of shoreline. DNR surveys put average water clarity at about 8.4 feet.
Minnesota DNR fisheries surveys list 8 fish species here, including walleye, largemouth bass, black crappie, and bluegill. 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 2023.
There is one public boat launch (concrete surface) managed by the Minnesota DNR.
Plan Your Visit to Thompson Lake
- 154 acres, up to 22 feet deep, near Hoffman
- 1 public boat launch (concrete) — managed by the Minnesota DNR
- Game fish on the DNR survey: walleye, largemouth bass, black crappie, and bluegill
- Average water clarity around 8.4 feet
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- Minnesota DNR
Conditions
- Surface area
- 154 acres
- Max depth
- 22 ft
- Average depth
- 16 ft
- Shoreline
- 2.4 mi
- Water clarity
- 8.4 ft
- Shallows (under 15 ft)
- 74 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)
- Ice is never completely safe — check thickness yourself before walking or driving on any lake
Angler's Report
Minnesota DNR LakeFinder- Species on survey
- 8
- Game fish
- 4
- Stocked
- Yes
- Last DNR survey
- 2023
- 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 Thompson Lake
Compare Thompson Lake against the top-ranked lakes nearby, then map your route.
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Nearby Lakes
Elk Lake
53 out of 100 Lake ScoreGrant · Hoffman207 acres
2.7 miles away
Lower Elk Lake
47 out of 100 Lake ScoreGrant · Hoffman131 acres
3.6 miles away
Barrett Lake
51 out of 100 Lake ScoreGrant · Barrett530 acres
3.6 miles away
Red Rock Lake
58 out of 100 Lake ScoreDouglas · Hoffman904 acres
5.8 miles away
Long Lake
48 out of 100 Lake ScoreDouglas · Evansville202 acres
7 miles away
Pomme de Terre Lake
59 out of 100 Lake ScoreGrant · Erdahl1,816 acres
8.7 miles away
Frequently Asked Questions
Where is Thompson Lake?
Thompson Lake is in Grant County, Minnesota, near Hoffman. It covers 154 acres and reaches 22 feet deep.
How big and how deep is Thompson Lake?
Thompson Lake covers 154 acres with about 2.4 miles of shoreline. Its maximum depth is 22 feet and its average depth is about 16 feet.
What fish can you catch at Thompson Lake?
Minnesota DNR surveys list Walleye, Largemouth Bass, Black Crappie, and Bluegill. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Thompson Lake?
Yes. Thompson Lake has 1 public boat launch (concrete), managed by the Minnesota DNR. DNR public water accesses are free to use.
Can you swim at Thompson Lake?
There is no mapped public swim beach at Thompson 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 Thompson Lake stocked?
Yes. The Minnesota DNR has stocking records for Thompson Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.