Classification: City
Located in: Illinois (IL)
Total Population (2000): 39684
Total Housing Units (2000): 17542
Land Area (square meters): 41243725
Water Area (square meters): 3168012
Land Area (square miles): 15.924292
Water Area (square miles): 1.223176
Latitude (decimal degrees): 41.489083
Longitude (decimal degrees): -90.573154
FIPS Code: 17
Place FIPS Code: 65078