Classification: County
Located in: Iowa (IA)
Total Population (2000): 40671
Total Housing Units (2000): 15289
Land Area (square meters): 1480551159
Water Area (square meters): 4047522
Land Area (square miles): 571.644023
Water Area (square miles): 1.562757
Latitude (decimal degrees): 41.373285
Longitude (decimal degrees): -93.559883
FIPS Code: 19
Place FIPS Code: 181