Classification: County
Located in: Illinois (IL)
Total Population (2000): 5537
Total Housing Units (2000): 2464
Land Area (square meters): 649869187
Water Area (square meters): 4791467
Land Area (square miles): 250.915907
Water Area (square miles): 1.849996
Latitude (decimal degrees): 39.647927
Longitude (decimal degrees): -90.478407
FIPS Code: 17
Place FIPS Code: 171