Diamond Lake
About Diamond Lake
Diamond Lake is a 77-acre lake near Walker in Cass County, Minnesota. It reaches 31 feet at its deepest point, and has roughly 1.9 miles of shoreline. DNR surveys put average water clarity at about 12.7 feet, clearer than most lakes in the state.
Minnesota DNR fisheries surveys list 2 fish species here, including rainbow trout. 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 2021.
There is one public boat launch (concrete surface) managed by the US Forest Service.
Plan Your Visit to Diamond Lake
- 77 acres, up to 31 feet deep, near Walker
- 1 public boat launch (concrete) — managed by the US Forest Service
- Game fish on the DNR survey: rainbow trout
- Average water clarity around 12.7 feet — very clear
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- US Forest Service
Conditions
- Surface area
- 77 acres
- Max depth
- 31 ft
- Shoreline
- 1.9 mi
- Water clarity
- 12.7 ft
- Shallows (under 15 ft)
- 62 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
- A trout and salmon stamp is required to fish designated trout lakes or to keep trout
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
- 2
- Game fish
- 1
- Stocked
- Yes
- Last DNR survey
- 2021
- 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 Diamond Lake
Compare Diamond Lake against the top-ranked lakes nearby, then map your route.
Nearby Lakes
Hovde Lake
54 out of 100 Lake ScoreCass · Walker133 acres
1.1 miles away
Little Webb Lake
60 out of 100 Lake ScoreCass · Hackensack226 acres
1.8 miles away
Stony Lake
66 out of 100 Lake ScoreCass · Hackensack563 acres
2.8 miles away
Larson Lake
30 out of 100 Lake ScoreCass · Hackensack194 acres
2.8 miles away
Webb Lake
70 out of 100 Lake ScoreCass · Hackensack720 acres
3.4 miles away
Pine Lake
59 out of 100 Lake ScoreCass · Whipholt261 acres
3.8 miles away
Frequently Asked Questions
Where is Diamond Lake?
Diamond Lake is in Cass County, Minnesota, near Walker. It covers 77 acres and reaches 31 feet deep.
How big and how deep is Diamond Lake?
Diamond Lake covers 77 acres with about 1.9 miles of shoreline. Its maximum depth is 31 feet.
What fish can you catch at Diamond Lake?
Minnesota DNR surveys list Rainbow Trout. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Diamond Lake?
Yes. Diamond Lake has 1 public boat launch (concrete), managed by the US Forest Service. DNR public water accesses are free to use.
Can you swim at Diamond Lake?
There is no mapped public swim beach at Diamond 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 Diamond Lake stocked?
Yes. The Minnesota DNR has stocking records for Diamond Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.