Classification: County
Located in: South Dakota (SD)
Total Population (2000): 16481
Total Housing Units (2000): 7055
Land Area (square meters): 1918975480
Water Area (square meters): 153777208
Land Area (square miles): 740.920607
Water Area (square miles): 59.373714
Latitude (decimal degrees): 44.418527
Longitude (decimal degrees): -100.159269
FIPS Code: 46
Place FIPS Code: 65