Largest lakes & reservoirs in US Midwest 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 516 articles we have published for US Midwest Region lakes.
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Below are lakes within USA > US Midwest Region > Compared by water volume. This list does not represent all lakes in US Midwest Region, only the 516 US Midwest Region lake articles we have published on the LakeLubbers website.
Lake name  |
Water vol. in ac-ft |
Lake description |
|---|---|---|
| Lake Superior (Canada, Great Lakes of North America, Lake Superior Northwoods Region, WI, Michigan, Minnesota, Northeast Minnesota, Ontario, Canada, US Midwest Region, USA, Upper Peninsula Region, MI, Wisconsin) |
9,799,680,000 ac-ft | Skipping over state and country borders, Lake Superior, the largest, deepest, coldest, cleanest, least developed, and most pristine of the Great Lakes… |
| Lake Michigan-Huron (Canada, Chicagoland Region, IL, Great Lakes of North America, Illinois, Indiana, Lake Michigan Region, WI, Michigan, North Indiana, Northeast Michigan, Northwest Michigan, Ontario, Canada, Southwest Michigan, US Midwest Region, USA, Upper Peninsula Region, MI, West Central Michigan, Wisconsin) |
6,858,776,000 ac-ft | Lake Michigan and Lake Huron – two of North America’s Great Lakes – are contiguous and they share the same elevation of 577 feet above sea level. They… |
| Lake Michigan (Chicagoland Region, IL, Great Lakes of North America, Illinois, Indiana, Lake Michigan Region, WI, Michigan, North Indiana, Northwest Michigan, Southwest Michigan, US Midwest Region, USA, Upper Peninsula Region, MI, West Central Michigan, Wisconsin) |
3,987,456,000 ac-ft | As the only Great Lake nestled completely within the boundaries of the United States, Lake Michigan is the pride and joy of Wisconsin, Illinois, India… |
| Lake Huron (Canada, East Central Michigan, Great Lakes of North America, Michigan, Northeast Michigan, Ontario, Canada, US Midwest Region, USA, Upper Peninsula Region, MI) |
2,872,320,000 ac-ft | A glacial lake of epic proportions, Lake Huron is the second largest of the five Great Lakes by surface area, boasting 23,010 square miles and an incr… |
| Lake Erie (Canada, Chautauqua-Allegheny Region, NY, Great Lakes Region, PA, Great Lakes of North America, Greater Niagara Region, NY, Michigan, New York, Northeast Ohio, Northwest Ohio, Ohio, Ontario, Canada, Pennsylvania, Southeast Michigan, US Mid-Atlantic Region, US Midwest Region, USA) |
391,987,200 ac-ft | Lake Erie, one of the Great Lakes of North America, straddles the borders of Ohio, Pennsylvania, New York, Michigan, and the Canadian province of Onta… |
| Lake Sakakawea, ND (North Dakota, Northwest Region, ND, US Midwest Region, USA) |
23,821,000 ac-ft | The second-largest reservoir by surface acreage in the United States (and third-largest in volume), Lake Sakakawea stretches 178 miles from Garrison D… |
| Lake Oahe, ND/SD (Great Lakes Region, SD, North Dakota, South Central Region, ND, South Dakota, Southwest Region, ND, US Midwest Region, USA) |
23,137,000 ac-ft | Lake Oahe, named after an Oahe Indian Mission, roughly translates “a foundation” or “a place to stand on.” Spanning 231 miles from Pierre, South Dakot… |
| Lake of the Woods, MN / Canada (Canada, Manitoba, Canada, Minnesota, Northwest Minnesota, Ontario, Canada, US Midwest Region, USA) |
15,700,000 ac-ft | Spanning the border from Minnesota into the Canadian provinces of Ontario and Manitoba, Lake of the Woods is an enormous body of water over 68 miles l… |
| Bull Shoals Lake, AR/MO (Arkansas, Missouri, Ozarks Region, AR, Southwest Missouri, US Midwest Region, US South Region, USA) |
3,400,000 ac-ft | Tucked in the Ozark Mountains, Bull Shoals Lake offers year round opportunities for relaxation and recreation. With over 45,000 surface acres of water… |
| Lake Francis Case, SD (Great Lakes Region, SD, South Dakota, US Midwest Region, USA) |
3,124,000 ac-ft | Lake Francis Case, one of the most popular recreation spots in the Great Plains, is located along the Missouri River in south-central South Dakota. La… |
| Mille Lacs Lake, MN (Central Minnesota, Minnesota, US Midwest Region, USA) |
2,782,736 ac-ft | (Also known as Lake Mille Lacs) August 2015 Update: The Minnesota Department of Natural Resources issued an order August 2, 2015 banning walleye fishing for the rest of the season. T… |
| Lake Saint Clair, MI / Canada (Canada, Michigan, Ontario, Canada, Southeast Michigan, US Midwest Region, USA) |
2,770,944 ac-ft | (Also known as Lake St. Clair) Heart-shaped Lake Saint Clair is the smallest body of water in the Great Lakes system. Tucked between Lake Huron to the north and Lake Erie to the sou… |