Capital: Pierre(

)
Land Area: 75,885 sq. miles
(source: 2010 Census)
Population: 814,180
(source: 2010 Census estimate)
Highest Point:
Harney Peak at 7,242 feet, located in the county/subdivision of Pennington
(source: U.S. Geological Survey)
Lowest Point:
Big Stone Lake at 966 feet, located in the county/subdivision of Roberts
(source: U.S. Geological Survey)
Geographic Center:
Located in Hughes County approx. 8 miles northeast of Pierre
(source: U.S. Geological Survey)