Classification: City
Located in: Illinois (IL)
Total Population (2000): 81860
Total Housing Units (2000): 37239
Land Area (square meters): 107638710
Water Area (square meters): 11180714
Land Area (square miles): 41.55954
Water Area (square miles): 4.316898
Latitude (decimal degrees): 39.851636
Longitude (decimal degrees): -88.944228
FIPS Code: 17
Place FIPS Code: 18823