Largest lakes & reservoirs in Northeast Washington by water volume
The estimated volume of water that a lake contains is measured at the lake’s normal elevation. By this measure, the world’s largest freshwater lake is Siberia’s Lake Baikal.Water Volume can be measured in acre-feet, in cubic miles, or in cubic kilometers. One acre-foot is the amount of water needed to cover one acre (43,560 square feet) to a depth of one foot. One cubic mile equals 3,379,200 acre-feet. One cubic kilometer equals 810,713 acre-feet. 1 acre-foot is equal to 325,851 US gallons. Siberia’s Lake Baikal contains about 6,276,367,740,000,000 gallons of freshwater – nearly 1 million gallons for every living person on earth.
The other – and more widely used – measure of a lake’s size is the lake’s surface acreage. By that measure, the world’s largest freshwater lake is North America’s Lake Superior.
Note: In the United States, an acre foot is a unit of volume used to refer to large-scale bodies of water. It is defined by the volume of water needed to cover 1 acre of surface area to a depth of 1 foot.
You can find many of the the world’s largest lakes (by water volume) on LakeLubbers. Note: For some lakes, the water volume data is unknown or does not apply, so you may see fewer lakes than the total 12 articles we have published for Northeast Washington lakes.
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Below are lakes within USA > US West Region > Washington > Northeast Washington > Compared by water volume. This list does not represent all lakes in Northeast Washington, only the 12 Northeast Washington lake articles we have published on the LakeLubbers website.
Lake name  |
Water vol. in ac-ft |
Lake description |
|---|---|---|
| Lake Roosevelt, WA (Northeast Washington, US West Region, USA, Washington) |
9,402,000 ac-ft | (Also known as Lake Franklin D. Roosevelt) Lake Roosevelt, located approximately 90 miles northwest of Spokane, Washington, covers 82,000 acres with a shoreline of 630 miles. Lake Roosevelt, al… |
| Lake Spokane, WA (Northeast Washington, US West Region, USA, Washington) |
243,341 ac-ft | (Also known as Long Lake) Lake Spokane, a 24 mile long reservoir, is so named because of its close proximity to Spokane, Washington. However, some people call it Long Lake, aft… |
| Deer Lake, WA (Northeast Washington, US West Region, USA, Washington) |
57,000 ac-ft | Deer Lake, located in Stevens County, Washington, is a spring-fed and snow-fed lake with approximately a 1,150-acre surface in the Colville River wate… |
| Loon Lake, WA (Northeast Washington, US West Region, USA, Washington) |
50,600 ac-ft | Crystal clear water from a natural spring fills Loon Lake located in Stevens County in northeastern Washington. In a beautiful mountain setting surrou… |
| Curlew Lake, WA (Northeast Washington, US West Region, USA, Washington) |
39,519 ac-ft | Nestled in a valley with breathtaking views of Colville National Forest, Ferry National Forest and mountain ranges, Curlew Lake is located 4.8 miles n… |
| Newman Lake, WA (Northeast Washington, US West Region, USA, Washington) |
22,800 ac-ft | Newman Lake is a natural 1,200-acre lake located about 20 miles northeast of Spokane, Washington. Although Newman Lake is relatively small compared to… |
| Diamond Lake, WA (Northeast Washington, US West Region, USA, Washington) |
21,600 ac-ft | Situated in the heart Washington’s Pend Oreille County, Diamond Lake is one of many sparkling bodies of water belonging to the Evergreen State. Centur… |
| Waitts Lake, WA (Northeast Washington, US West Region, USA, Washington) |
18,880 ac-ft | Set against the tree-clad mountain backdrop of Northeast Washington, Waitts Lake is a beautiful destination for the whole family. Surrounded by nation… |
| Silver Lake Spokane County, WA (Northeast Washington, US West Region, USA, Washington) |
14,580 ac-ft | Visitors to Northeast Washington can find a lakeside paradise at Silver Lake. Only 20 minutes southwest of Spokane, Silver Lake offers nearly 500 acre… |
| Eloika Lake, WA (Northeast Washington, US West Region, USA, Washington) |
6,018 ac-ft | Eloika Lake is nestled in the foothills of the Selkirk Mountain Range in the northern most part of Spokane County in Washington. The Spokane Indian Na… |