Classification: County
Located in: Illinois (IL)
Total Population (2000): 27619
Total Housing Units (2000): 10749
Land Area (square meters): 1005671538
Water Area (square meters): 24392101
Land Area (square miles): 388.291968
Water Area (square miles): 9.417843
Latitude (decimal degrees): 38.329154
Longitude (decimal degrees): -90.175233
FIPS Code: 17
Place FIPS Code: 133