Classification: County
Located in: South Dakota (SD)
Total Population (2000): 21802
Total Housing Units (2000): 10427
Land Area (square meters): 2072082384
Water Area (square meters): 722394
Land Area (square miles): 800.035515
Water Area (square miles): 0.278918
Latitude (decimal degrees): 44.39925
Longitude (decimal degrees): -103.800052
FIPS Code: 46
Place FIPS Code: 81