Sibley, IL -- U.S. village in Illinois Population (2000): 329 Housing Units (2000): 149 Land area (2000): 0.537926 sq. miles (1.393223 sq. km) Water area (2000): 0.013371 sq. miles (0.034630 sq. km) Total area (2000): 0.551297 sq. miles (1.427853 sq. km) FIPS code: 69810 Located within: Illinois (IL), FIPS 17 Location: 40.587580 N, 88.382282 W ZIP Codes (1990): 61773 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Sibley, IL Sibley