Lake trip · Kandiyohi County, Minnesota
Where to stay at Diamond Lake
Diamond Lake covers 1,610 acres in Kandiyohi County, with water clarity of about 5.6 ft. Compare cabins, resorts, and vacation rentals below. The water-quality readings cover nutrients and algae; they are not a stay-or-skip rating. Open water runs roughly Apr 15 to Dec 8, with June through August the peak stretch for swimming, boating, and fishing.
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Places to stay near Diamond Lake
Cabins, resorts, hotels, and vacation rentals near Diamond Lake in Kandiyohi County, Minnesota — live availability and prices. Add your dates to see totals.
Top-rated places to stay near Diamond Lake
Prices for Sep 18–20, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
About the water
Diamond Lake has nutrient and algae measurements on record from state and federal monitoring. Water clarity is about 5.6 ft of visibility. Algae (chlorophyll-a) measures 17.4 µg/L. Chlorophyll-a in the monitoring record runs high enough that algae is a factor. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim. The readings are not a reason to skip cabins and rentals around the lake.
Best time to visit
Open water runs roughly Apr 15 to Dec 8, with June through August the peak stretch for swimming, boating, and fishing.
Check the National Weather Service forecast for Diamond Lake →
About Diamond Lake
Fish: black bullhead, black crappie, bluegill, bowfin (dogfish), brown bullhead, common carp, green sunfish, hybrid sunfish.
Fishing & license
When to fish Diamond Lake — the seasonal windows by species, from state survey data.
Minnesota fishing license
Anglers under 16 are not required to have a license. Residents age 90+ also exempt. · The Minnesota walleye, northern pike, and bass season opens the Saturday two days before Mother's Day. Most other species are open year-round.
Prices as published by Minnesota Department of Natural Resources, 2026.
Camping & RV near Diamond Lake
Base your trip at a nearby state park for tent and RV camping and trails, with Diamond Lake a short drive away — or search all public campgrounds and RV sites in the area on Recreation.gov.
- Sibley State Park · State Park12.8 mi
- Greenleaf Lake State Recreation Area · State Recreation Area21.7 mi
- Monson Lake State Park · State Park22.9 mi
Common questions
Frequently Asked Questions
Cabins, resorts, and vacation rentals around Diamond Lake in Kandiyohi County, Minnesota are on the map above with live availability and nightly prices. Waterfront rentals put you on the dock; lodging in the nearest town is usually cheaper with more choice. Sibley State Park is about 12.8 miles away for campground options.
Diamond Lake has nutrient and algae measurements on record from state and federal monitoring. Chlorophyll-a in the monitoring record runs high enough that algae is a factor. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.
Open water runs roughly Apr 15 to Dec 8, with June through August the peak stretch for swimming, boating, and fishing.
Explore Diamond Lake
Every Minnesota lake with its published measurements
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Fish species and best lakes in Kandiyohi County
Species activity outlook by water temperature and season
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Lakes in the Crow River Watershed, ranked by water quality
High nutrients, frequent algae, reduced clarity
Minnesota's cleanest and most-polluted lakes, ranked
LakeQuality Lake Trip Planner (2026)
Free trip-planning guide for Diamond Lake: how to pick a clean lake, the water-quality signals that matter, best swimming and fishing windows, and where to stay.
Lodging availability and prices are provided by Stay22 and its booking partners (Booking.com, Vrbo, Expedia); LakeQuality may earn a commission from bookings at no extra cost to you. Water-quality readings are independent of lodging listings. Always check current health-department advisories and managing-agency conditions before you travel.