Classification: County
Located in: Iowa (IA)
Total Population (2000): 41722
Total Housing Units (2000): 16786
Land Area (square meters): 1136146756
Water Area (square meters): 26935827
Land Area (square miles): 438.668734
Water Area (square miles): 10.399981
Latitude (decimal degrees): 41.472456
Longitude (decimal degrees): -91.084801
FIPS Code: 19
Place FIPS Code: 139