Largest lakes & reservoirs in US West Region 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 329 articles we have published for US West Region lakes.
Thinking about booking a US West Region 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 water volume
Below are lakes within USA > US West Region > Compared by water volume. This list does not represent all lakes in US West Region, only the 329 US West Region lake articles we have published on the LakeLubbers website.
Lake name | Water vol. in ac-ft | Lake description |
---|---|---|
Shasta Lake, CA (California, Shasta Cascade Region, CA, US West Region, USA) |
4,552,000 ac-ft | Shasta Lake, one of the largest lakes in California, is an outdoor paradise of fresh blue water, awe-inspiring caverns, investigative trails, first cl … |
Flaming Gorge Reservoir, UT/WY (Dinosaurland Region, UT, Southwest Wyoming, US West Region, USA, Utah, Wyoming) |
3,788,900 ac-ft | With more than 42,000 acres of boating and fishing waters, surrounded by choice camping and picnic areas, Flaming Gorge Reservoir – straddling the Wyo … |
Hungry Horse Reservoir (Glacier Country, MT, Montana, US West Region, USA) |
3,468,000 ac-ft | Hungry Horse Reservoir in Montana’s Glacier Country offers a wealth of recreational opportunities to northwestern Montana visitors. The nearly 24,000- … |
Dworshak Reservoir, ID (Idaho, North Central Idaho, US West Region, USA) |
3,453,000 ac-ft | Dworshak Reservoir is an excellent outdoor recreation site with a great water playground of over 19,000 acres. Located in northern Idaho near the town … |
Trinity Lake, CA (California, Shasta Cascade Region, CA, US West Region, USA) |
2,447,650 ac-ft | (Also known as Clair Engle Lake) In 1976 Tim Brady from Weaverville caught the California record smallmouth bass in Trinity Lake. The quiet lake still draws anglers today, both for th … |
Mono Lake, CA (California, High Sierra Region, CA, US West Region, USA) |
2,407,820 ac-ft | Mono Lake, located in California’s Eastern Sierra Nevada Mountains, has a long and rich history dating back to its formation over 760,000 years ago. S … |
Lake Washington, WA (Seattle & Puget Sound Region, WA, US West Region, USA, Washington) |
2,350,000 ac-ft | 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 … |
Coeur d’Alene Lake, ID (Idaho, Northern Idaho, US West Region, USA) |
2,269,996 ac-ft | (Also known as Lake Coeur d'Alene) Nestled at the foothills of the Rocky Mountains in the Northern Panhandle of Idaho, 30,000-acre Coeur d’Alene Lake (pronounced Core-de-lane) is a spec … |
Walker Lake, NV (Nevada, Nevada Silver Trails, NV, US West Region, USA) |
2,200,000 ac-ft | Walker Lake is a natural lake located in rural Mineral County, Nevada about 75 miles southeast of Reno, Nevada. It is one of several freshwater termin … |
San Luis Reservoir, CA (California, Central Valley Region, CA, US West Region, USA) |
2,041,000 ac-ft | A sparkling sapphire gem carved into the eastern edge of the San Joaquin Valley, the San Luis Reservoir enjoys a scenic location in Merced County. Thi … |
Don Pedro Lake, CA (California, Gold Country Region, CA, US West Region, USA) |
2,030,000 ac-ft | (Also known as Lake Don Pedro, Don Pedro Reservoir) Don Pedro Lake, also known as Don Pedro Reservoir and Lake Don Pedro, is nestled into the foothills of the Sierra Nevada Mountains. With a surface are … |
Canyon Ferry Lake, MT (Gold West Country, MT, Montana, US West Region, USA) |
1,891,888 ac-ft | For lake lovers who relish the beauty of nature and the wonder of wildlife, there’s no better place to relax and have fun than at Canyon Ferry Lake. A … |