Largest lakes & reservoirs in Northwest by water volume
This is a comparison for lakes within USA > Midwest > Iowa > Northwest > - Compared by Largest Lakes - Water Volume in acre-foot.For some lakes, "Largest Lakes - Water Volume" is unknown or does not apply, so this table may display fewer lakes than the total 7 articles we have published for Northwest lakes.
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.
Search results: Sort lakes by water volume
Lake name ![]() |
Water vol. in ac-ft ![]() |
Lake description |
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West Okoboji Lake (Iowa, Midwest, Northwest, USA) |
146,186 ac-ft | (Also known as West Lake Okoboji) West Okoboji Lake is one of Iowa’s eight Great Lakes located in Dickinson County. It was named “Minnetonka” by the Sioux Indians meaning “Great Waters… |
Spirit Lake IA (Iowa, Midwest, Northwest, USA) |
94,153 ac-ft | (Also known as Big Spirit Lake) Spirit Lake is one of a chain of lakes known as Iowa’s Great Lakes. Also called Big Spirit Lake, this natural body of water was named by the Dakota Na… |
East Okoboji Lake (Iowa, Midwest, Northwest, USA) |
18,430 ac-ft | (Also known as East Lake Okoboji) East Okoboji Lake is one of a chain of lakes known as Iowa’s Great Lakes. East Okoboji Lake received its unique name from the Dakota Indians. They cal… |
Okamanpeedan Lake (Iowa, Midwest, Minnesota, Northwest, Southern, USA) |
8,270 ac-ft | (Also known as Tuttle Lake) Located in Martin County, Minnesota and Emmet County, Iowa, Okamanpeedan Lake is also known as Tuttle Lake. Okamanpeedan is Native American for “nesti… |