Classification: County
Located in: Iowa (IA)
Total Population (2000): 12183
Total Housing Units (2000): 5133
Land Area (square meters): 1040960153
Water Area (square meters): 40735233
Land Area (square miles): 401.916979
Water Area (square miles): 15.727962
Latitude (decimal degrees): 41.217443
Longitude (decimal degrees): -91.261679
FIPS Code: 19
Place FIPS Code: 115