It is 77,116 square miles.
1,305 square miles or 835,200 acres.
South Dakota's total area (land and water) is 49,354,035.2 acres.
South Dakota's total area is 70,698 square miles, ranked 19th in the US.
South Dakota has total area of 77,115 square miles which includes 75,811 square miles of land. South Dakota is the 17th largest U.S. state based on total area and the 16th largest U.S. state based on land area.
In area, Perkins County is the second largest county in South Dakota with a total area of 2,891 square miles. In population, Pennington County is the second largest county in South Dakota with a total population of 100,948 (2010 Census).
The area of South Dakota is 77,121 square miles!
North Dakota has 2,948 square miles of surface water or about 2.4% of the total area of 70,700 square miles
The area of North Dakota is 70,704 sq. miles.North Dakota, USA - 70,704 square miles (20th largest of the 50 states).According to the US Census bureau, the land area of North Dakota is 68,975.93 square miles. North Dakota is 70,762 square miles.
North Dakota ranks 19th in size by total area (land+water) with 70,699.79 square miles.
South Dakota is located in the plains area.
South Dakota
The area of Lake Thompson - South Dakota - is 50.404 square kilometers.
Butte County, SD covers 2,266 square miles.