Oblong, IL -- U.S. village in Illinois Population (2000): 1580 Housing Units (2000): 761 Land area (2000): 0.950204 sq. miles (2.461016 sq. km) Water area (2000): 0.008707 sq. miles (0.022551 sq. km) Total area (2000): 0.958911 sq. miles (2.483567 sq. km) FIPS code: 55106 Located within: Illinois (IL), FIPS 17 Location: 39.001274 N, 87.908470 W ZIP Codes (1990): 62449 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Oblong, IL Oblong