Largest lakes & reservoirs in Seattle & Puget Sound Region, WA by acres
There is no widely-accepted minimum surface area that defines a lake. What LakeLubbers describes as a lake, you might call a pond. Acreage of a lake (or sometimes square kilometers) is most often measured at the top surface area when the lake is at normal elevation. The surface area can be considerably smaller or larger when lake levels are lower or higher than normal. North America’s Lake Superior is the world’s largest freshwater lake by this measure.The other measure of a lake’s size is the lake’s water volume. By that measure, the world’s largest freshwater lake is Lake Baikal in Siberia.
You can find many of the world’s largest lakes (acres) on LakeLubbers in the comparison table below. Note: For some lakes, "Largest Lakes - Acres" data is unknown or does not apply, so you may see fewer lakes than the total 14 articles we have published for Seattle & Puget Sound Region, WA lakes.
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Below are lakes within USA > US West Region > Washington > Seattle & Puget Sound Region, WA > Compared by surface area in acres. This list does not represent all lakes in Seattle & Puget Sound Region, WA, only the 14 Seattle & Puget Sound Region, WA lake articles we have published on the LakeLubbers website.
Lake name  |
Surface area in acres |
Lake description |
|---|---|---|
| Lake Washington, WA (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
21,500 ac | Lake Washington has the distinction of being the second largest natural lake in the state of Washington. This glacial lake is long and narrow, a “ribb… |
| Riffe Lake (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
11,830 ac | Also known as Riffe Reservoir, Mossyrock Lake, Davisson Lake Riffe Lake by any other name would still be a fantastic recreational spot. The name confusion for this man-made reservoir in the Seattle and Puget Sou… |
| Lake Sammamish, WA (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
4,897 ac | At just under 5,000 acres, Lake Sammamish is one of the major recreational lakes in the state. The lake provides activities for fishermen, boaters, je… |
| Lake Tapps (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
2,780 ac | Also known as Tapps Reservoir Located in the populous Seattle and Puget Sound Region of Washington, Lake Tapps delivers water supply, recreation and sound fish ecology to residents… |
| Mayfield Lake (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
2,200 ac | Mayfield Lake is cradled in the foothills of the Cascades in Lewis County, Washington. This 2,200-acre reservoir is conveniently located close to Moun… |
| American Lake, WA (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
1,100 ac | Less than three miles inland from Puget Sound, American Lake is one of the lesser known vacation destinations in Washington’s Seattle-King County Regi… |
| Lake Union (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
580 ac | 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… |
| Kitsap Lake, WA (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
250 ac | One of 101 lakes in Kitsap County, Washington, Kitsap Lake is conveniently located just three miles west of the city of Bremerton. This lake, which is… |
| Wildcat Lake, WA (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
120 ac | 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… |
| Josephine Lake (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
73 ac | Also known as Lake Josephine Located on the east side of Anderson Island, Josephine Lake is a residential paradise. Anderson is a large island located in Puget Sound, a waterway w… |
| Lake Morton (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
66 ac | Lake Morton is a small wilderness haven with city amenities nearby, located about 30 miles southeast of Seattle in King County. With snow-capped Mt. R… |
| Florence Lake (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
63 ac | 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… |