Classification: County
Located in: Iowa (IA)
Total Population (2000): 20221
Total Housing Units (2000): 8126
Land Area (square meters): 1490042057
Water Area (square meters): 3604321
Land Area (square miles): 575.308479
Water Area (square miles): 1.391636
Latitude (decimal degrees): 42.119996
Longitude (decimal degrees): -91.162116
FIPS Code: 19
Place FIPS Code: 105