Diamond Lake
Cass County, Minnesota
Today's Fishing Forecast
Fishing looks to be moderately active with peak fishing times around 3-5 PM. SEE MORE

Visit Leech Lake
Leech Lake is known for offering the best Walleye fishing and Muskie fishing in the Midwest. With 195 miles of shoreline and 112,835 acres to explore, both professional fishermen and family fishing trips alike are sure to enjoy a successful day of fishing on Leech Lake.
Share your catch!
We want to see what you've caught on Diamond Lake.Frequently Asked Questions About Diamond Lake, MN
- How big is Diamond Lake?
- How deep is Diamond Lake?
- What kind of fish can you catch in Diamond Lake?
- What are the closest cities to Diamond Lake?
- Are there places to stay in the Diamond Lake area?
- Are there topographical lake maps available Diamond Lake?
- Are there boat launches on Diamond Lake?
- Are there places to eat and drink near Diamond Lake?
- What is the average air temp for Diamond Lake?
- Are there any state parks near Diamond Lake?
How big is Diamond Lake?
How deep is Diamond Lake?
What kind of fish can you catch in Diamond Lake?
Other fish species in the lake include Brook Stickleback, Central Mudminnow, Fathead Minnow, Finescale Dace, Golden Shiner, Northern Redbelly Dace and White Sucker.
What are the closest cities to Diamond Lake?
Are there places to stay in the Diamond Lake area?
More Lodging Options
Are there topographical lake maps available Diamond Lake?
Are there boat launches on Diamond Lake?
Diamond Lake area businesses:
Are there places to eat and drink near Diamond Lake?
Explore the Diamond Lake area in a RV
Are you looking for an adventurous vacation option that won't break the bank? Look no further than renting an RV! Contrary to popular belief, the process is much simpler than you might imagine. With just a few easy steps, you'll soon be experiencing the ultimate freedom and convenience of exploring the open road in your very own recreational vehicle. And the best part? RV travel can save you up to 60% compared to other types of vacations! With the money you'll save, you'll be able to travel even more and create unforgettable memories along the way. So why wait? Start planning your next adventure today with an RV rental. Learn more about renting a RV.
2025 Forest River Cherokee Grey Wolf - Family Friendly & Adventure Ready!
Bemidji, MN
History & Status of the Fishery
Diamond Lake is a 77-acre lake with 1.86 miles of shoreline and a maximum depth of 31 feet located northeast of Hackensack, MN. There is a US Forest Service public access located on the west shore. Diamond Lake offers Rainbow Trout fishing in a remote, wilderness like setting. The lake is entirely within the Chippewa National Forest and the shoreline is undeveloped. Diamond Lake is one of four designated stream trout lakes in the Walker Fisheries Management Area. Other stream trout lakes in the Walker Management Area are Hazel, Perch, and Teepee Lakes.
Rainbow Trout were initially stocked in Diamond Lake in 1967. Rainbow Trout do not reproduce in the lake and the population is supported entirely by stocking to provide a unique angling opportunity. Rainbow Trout stocking success is dependent on the absence of introduced species. The average length of Rainbow Trout sampled in 2021 was 10 inches and lengths ranged from 8 to 17 inches. Black Bullhead were first sampled in 2013. In January 2015 Diamond Lake was opened to winter trout fishing for the first time and provided increased opportunities for ice anglers. Based on surveys following the opening of the winter season, there are no indications that ice fishing has had an effect on Rainbow Trout sizes or abundance.
People can have significant impacts on lakes and the fish populations they support. Harvest, lakeshore development, removal of shoreline vegetation, and introductions of invasive species can all adversely affect fish populations. Currently no aquatic invasive species (AIS) have been identified in Diamond Lake. AIS are moved from infested to non-infested waters by anglers, boaters, and lake shore owners and can adversely impact lakes and fish populations. To avoid spreading AIS, lake users are required to remove all aquatic plants or animals from their watercraft and drain all water from their boat before leaving the access. If you suspect an infestation of an invasive species in this lake, save a specimen and report it to a local natural resource office. Additional information on all of these topics can be found on the DNR website (www.dnr.state.mn.us) or by contacting the Walker Area Fisheries office.
What is the average air temp for Diamond Lake?
Are there any state parks near Diamond Lake?
For more Minnesota State Park information see our State Park Guide.
More Nearby Lakes To Explore
There's more lake's to explore around Diamond Lake...| DISTANCE | ACRES | MAX DEPTH | |
| Bluebill Lake | 0.5 mi | 45 | 7 ft |
| Hovde Lake | 1.1 mi | 133 | 26 ft |
| Long Lake | 1.1 mi | 59 | 43 ft |
| Cub Lake | 1.3 mi | 22 | 24 ft |
| Four-One-Eight Lake | 1.6 mi | 12 | 45 ft |
| Little Webb Lake | 1.8 mi | 226 | 37 ft |
| Teepee Lake | 2.2 mi | 21 | 31 ft |
| Shell Lake | 2.2 mi | 17 | |
| Unnamed Lake | 2.4 mi | 49 | |
| Big Hanson Lake | 2.4 mi | 18 | 95 ft |



