Diamond Lake
About Diamond Lake
Diamond Lake is a 1,610-acre lake near Atwater in Kandiyohi County, Minnesota. It reaches 27 feet at its deepest point, with an average depth of about 16 feet, and has roughly 9.5 miles of shoreline. DNR surveys put average water clarity at about 7.1 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 are 2 public boat launches (concrete surface) managed by the county. Diamond Lake County Park Campgrounds is mapped close to the shoreline for overnight stays. The lake is listed as infested with zebra mussel — clean, drain and dry your boat and gear before leaving. Ice typically goes out around April 15, based on 77 years of DNR ice-out records.
Plan Your Visit to Diamond Lake
- 1,610 acres, up to 27 feet deep, near Atwater
- 2 public boat launches (concrete) — managed by the county
- 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 7.1 feet
- Camping close to the water at Diamond Lake County Park Campgrounds
- Listed as infested with zebra mussel — clean, drain and dry before you leave
Access & Fees
- Public access
- 2 public boat launches (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- county
Conditions
- Surface area
- 1,610 acres
- Max depth
- 27 ft
- Average depth
- 16 ft
- Shoreline
- 9.5 mi
- Water clarity
- 7.1 ft
- Shallows (under 15 ft)
- 635 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
- 2 public boat launches (concrete)
- Camping: Diamond Lake County Park Campgrounds
Best For
- Walleye fishing
- Lakeside camping
- 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.
Ice-Out History
- Median ice-out
- April 15
- Years of record
- 77
- Earliest
- March 8, 2017
- Latest
- May 9, 2013
- Most recent
- March 8, 2017
See every lake on the ice-out tracker. Ice-out data: Minnesota DNR State Climatology Office.
Camping & Reservations
Diamond Lake County Park Campgrounds is mapped on or near Diamond Lake. Minnesota state park sites are booked through the DNR reservation system, national forest campgrounds through Recreation.gov, and most state forest campgrounds are first-come, first-served.
Campground locations © OpenStreetMap contributors. Confirm details with the operator.
Activities
Amenities
Fish Species
Plan your trip to Diamond Lake
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Nearby Lakes
Bass Lake
50 out of 100 Lake ScoreKandiyohi · Spicer50 acres
2.1 miles away
Elkhorn Lake
59 out of 100 Lake ScoreKandiyohi · Spicer79 acres
5.2 miles away
Green Lake
75 out of 100 Lake ScoreKandiyohi · Spicer5,569 acres
5.6 miles away
Peterson Lake
25 out of 100 Lake ScoreMeeker · Grove City135 acres
5.7 miles away
Lake Calhoun
52 out of 100 Lake ScoreKandiyohi · Spicer647 acres
6.2 miles away
Lake Minnetaga
50 out of 100 Lake ScoreKandiyohi · Kandiyohi791 acres
7.3 miles away
Frequently Asked Questions
Where is Diamond Lake?
Diamond Lake is in Kandiyohi County, Minnesota, near Atwater. It covers 1,610 acres and reaches 27 feet deep.
How big and how deep is Diamond Lake?
Diamond Lake covers 1,610 acres with about 9.5 miles of shoreline. Its maximum depth is 27 feet and its average depth is about 16 feet.
What fish can you catch at Diamond Lake?
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 Diamond Lake?
Yes. Diamond Lake has 2 public boat launches (concrete), managed by the county. 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.
Are there special fishing regulations on Diamond Lake?
Yes. Daily limit five.
When does the ice go out on Diamond Lake?
The median ice-out date is April 15, from 77 years of Minnesota DNR records. The earliest on record is March 8, 2017 and the latest is May 9, 2013.
Can you camp at Diamond Lake?
Yes. Diamond Lake County Park Campgrounds is mapped on or near the shore. Confirm whether sites are reservable or first-come, first-served before you go.
Does Diamond Lake have invasive species?
Yes. The DNR lists Diamond 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.