Caledonia, IL -- U.S. village in Illinois Population (2000): 199 Housing Units (2000): 75 Land area (2000): 0.533452 sq. miles (1.381635 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.533452 sq. miles (1.381635 sq. km) FIPS code: 10422 Located within: Illinois (IL), FIPS 17 Location: 42.367850 N, 88.892538 W ZIP Codes (1990): 61011 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Caledonia, IL Caledonia