Classification: County
Located in: Illinois (IL)
Total Population (2000): 22893
Total Housing Units (2000): 10060
Land Area (square meters): 1964534133
Water Area (square meters): 24712654
Land Area (square miles): 758.510902
Water Area (square miles): 9.541609
Latitude (decimal degrees): 39.385719
Longitude (decimal degrees): -88.799105
FIPS Code: 17
Place FIPS Code: 173