Largest lakes & reservoirs in Washington by shoreline length
The length of the exterior shoreline around a lake is measured at the lake’s normal elevation. The shoreline length can be considerably shorter or longer when lake water levels are lower or higher than normal. A lake with many coves has a much longer shoreline than a lake of similar surface area that is nearly circular in shape.When known, the shoreline miles that we report in our statistics include only the lake’s exterior shoreline, and exclude the shorelines of islands located within a lake’s boundaries. In lakes with many islands, those islands’ combined shorelines may exceed a lake’s exterior shoreline.
You can find many of the world’s longest-shoreline lakes on LakeLubbers. Note: For some lakes, "Longest Shorelines" data is unknown or does not apply, so this table may display fewer lakes than the total 58 articles we have published for Washington lakes.
Thinking about booking a Washington lake vacation home rental, cabin or hotel?
Use our free interactive vacation rental map to search and compare multiple vacation properties at a glance. Enter a lake name, a state or city and then simply click on a listing to compare all similar properties, best rates and availability for your dates.Search results: Sort lakes by miles of shoreline
Below are lakes within USA > US West Region > Washington > Compared by longest shoreline length in miles. This list does not represent all lakes in Washington, only the 58 Washington lake articles we have published on the LakeLubbers website.
Lake name | Shoreline length in miles | Lake description |
---|---|---|
Williams Lake WA (Northeast Washington, US West Region, USA, Washington) |
5 mi | Delighting anglers in eastern Washington, Williams Lake really serves up the trout! The long and narrow 320-acre lake is located less than 30 miles fr … |
Lake Sutherland, WA (Olympic Peninsula & Pacific Coast Region, WA, US West Region, USA, Washington) |
5 mi | If you’re considering a visit to Lake Sutherland, in Washington’s Olympic Peninsula and Pacific Coast Region, you’re in for a real treat! The all-spor … |
Lake Union (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
4 mi | Also known as Meman Hartshu, Small Lake, Tenass Chuck, Little Water Surrounded by four vibrant urban neighborhoods, Lake Union sits in the heart of Seattle, Washington. From orcas playing in Puget Sound to sea kayakers … |
Silver Lake Cowlitz County, WA (Southwest Washington, US West Region, USA, Washington) |
4 mi | Silver Lake is a shallow 3,000-acre wetland lake located in southwest Washington. Formed by an early eruption of Mount St. Helens, which permanently d … |
Wildcat Lake, WA (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
3 mi | Wildcat Lake can be found in the state of Washington’s Seattle and Puget Sound tourism region. It has a surface area of 120 acres and an average depth … |
Waitts Lake, WA (Northeast Washington, US West Region, USA, Washington) |
3 mi | Set against the tree-clad mountain backdrop of Northeast Washington, Waitts Lake is a beautiful destination for the whole family. Surrounded by nation … |
Florence Lake (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
2 mi | Also known as Lake Florence Florence Lake is special to Seattle and Puget Sound residents. Local tribes were familiar with Anderson Island long before its ‘official’ discovery in … |
Horseshoe Lake, WA (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
1 mi | One of three lakes in Washington state of the same name, Kitsap County’s Horseshoe Lake is the tiniest – and arguably the most beautiful – of them all … |
Barclay Lake (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
1 mi | Barclay Lake plays a larger part in the recreational opportunities of the Seattle and Puget Sound region of Washington than its size would indicate. J … |