Classification: County
Located in: Illinois (IL)
Total Population (2000): 6950
Total Housing Units (2000): 2456
Land Area (square meters): 791627134
Water Area (square meters): 4120069
Land Area (square miles): 305.648958
Water Area (square miles): 1.590768
Latitude (decimal degrees): 39.950254
Longitude (decimal degrees): -90.740237
FIPS Code: 17
Place FIPS Code: 9