Diamond Lake, Washington, USA

Welcome to the ultimate guide to Diamond Lake — things to do, where to stay, fun facts, history, stats and more. Let’s dive in!

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Looking for Diamond Lake cabins or other accommodations? Save time and use this interactive map to find, compare and book at the best rates. Or explore our comprehensive list of favorite travel partners.

All About Diamond Lake

Situated in the heart Washington’s Pend Oreille County, Diamond Lake is one of many sparkling bodies of water belonging to the Evergreen State. Centuries ago, sand and gravel dislodged from a glacier to form a natural dam, which in turn created the freshwater lake that exists today. Diamond lake is mostly spring fed, and drains into Moon Creek – which then carries the water to Sacheen Lake and the Little Spokane River.

Diamond lake’s exceptionally clear waters and warm summer weather attract visitors for a variety of activities like swimming, water skiing, jet skiing, tubing, fishing, and sailing. The lake usually freezes during the winter, creating conditions that are ripe for snowmobiling, ice skating, cross-country skiing and ice fishing. Camping is also extremely popular at Diamond Lake, with several nearby campgrounds to choose from. Hiking around the area yields astounding opportunities to view fantastic wildlife species, including minks and the occasional bear.

While Diamond Lake is small in size, at a mere 2.5 miles long and .5 miles wide, it is home to a surprising amount of fish. Anglers delight in the vast quantity of largemouth bass, catfish and yellow perch. Augmented by the Washington Department of Fish and Wildlife, Diamond Lake is one of the most heavily stocked bodies of water in the state of Washington – an average of 20,000 rainbow trout and 10,000 triploid and brown trout are transplanted yearly. A free public boat launch is locaed on the southeast side of the lake, also operated by the Washington Department of Fish and Wildlife.

Because all of Diamond Lake’s lots are privately owned, there are no public beaches; however, a large selection of lakeside real estate and luxurious vacation rentals are available – whether you are looking to relocate or to find a summer cabin rental. The local homeowners association, along with the Diamond Lake Improvement Association, provide guidelines and year-round activities for residents.

Several cultural attractions are situated near Diamond Lake, including the Tiger Historical Center and Museum and Newport’s Create Arts Center. Neaby, Metaline Falls’ Cutter Theatre, which served as the county school from 1912 to 1972, offers two historical libraries and a large theater. The Pend Oreille County Historical Society Museum is by far the premier locale to learn about the area’s rich past, particularly concerning the indigenous Kalispel tribe during the late 1800s.

For a day trip from Diamond Lake, don’t miss out on Riverside State Park. This massive 10,000 acre park is geared toward camping and fishing. Its rivers and freshwater marshes are ripe for swimming and boat exploration, and a myriad of picnic areas beckon to families looking to spend a day in the sunshine. North of Riverside, high in the Selkirt Mountains, sits the 13,919-acre Mount Spokane State Park. The highest point of elevation, at an impressive 5,883 feet, provides a stunning view of Canada on clear days.

Diamond Lake is less than an hour from the Spokane International Airport and 40 minutes from the city of Spokane – but somehow this convenient location does not compromise its isolated and organic ambiance. Whether you come for the phenomenal fishing, the sparkling waters or the gorgeous sunsets, Diamond Lake never fails to provide the ultimate lake getaway.

Things to Do at Diamond Lake

  • Vacation Rentals
  • Fishing
  • Ice Fishing
  • Boating
  • Sailing
  • Swimming
  • Beach
  • Jet Skiing
  • Water Skiing
  • Tubing
  • Camping
  • Campground
  • Picnicking
  • Cabin Rentals
  • Hiking
  • Ice Skating
  • Cross-Country Skiing
  • Snowmobiling
  • Wildlife Viewing
  • State Park
  • Museum

Fish Species Found at Diamond Lake

  • Bass
  • Black Bass
  • Brown Trout
  • Catfish
  • Largemouth Bass
  • Perch
  • Rainbow Trout
  • Trout
  • Yellow Perch

Find Places to Stay at Diamond Lake

If you’re considering a Diamond Lake lake house rental or hotel, we’ve made it super easy to find the best rates and compare vacation accommodations at a glance. Save time using this interactive map below.

Recommended Sites to Book a Diamond Lake Vacation

If you want to take a deeper dive to find waterfront lake cabins, cottages, condos, hotels or resorts, check out our favorite Diamond Lake lodging partners.

  • VRBO – Use VRBO to find the perfect lake rental home, condo, cabin, cottage or other vacation property.
  • Booking.com – One of the world’s leading digital travel companies, Booking.com connects travelers to everything from cozy B&Bs to luxury resorts.
  • Expedia – Expedia is a popular online travel agency with more than 140,000 lodging properties worldwide.
  • Hotels.com – With more than 325,000 hotels in 19,000-plus locations, Hotels.com is an industry leader in online accommodations.
  • TripAdvisor – Read traveler reviews and compare prices on hotels, vacation rentals and more at TripAdvisor.
  • Trivago – Trivago helps travelers compare deals for hotels and other accommodations from a variety of booking sites.
  • KAYAK – KAYAK scours hundreds of other travel websites at once to find the best deals on hotels and other travel-related services.
  • RVshare –RVshare connects travelers interested in renting a motorhome with owners who have RVs to rent.
  • CampSpot – Campspot offers premier RV resorts, family campgrounds, cabins and glamping options across North America.

Note: These are affiliate links so we may earn a small commission if you book through them. While there is no extra cost to you, it helps provide resources to keep our site running (thank you)! You can read our full disclosure policy here.

Diamond Lake Statistics & Helpful Links


Lake Type: Natural Freshwater Lake, Not Dammed

Surface Area: 800 acres

Shoreline Length: 7 miles

Normal Elevation (Full Pond): 2,340 feet

Average Depth: 27 feet

Maximum Depth: 58 feet

Water Volume: 21,600 acre-feet

Drainage Area: 17 sq. miles

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