Gibson, IL -- U.S. city in Illinois Population (2000): 3373 Housing Units (2000): 1565 Land area (2000): 2.102915 sq. miles (5.446524 sq. km) Water area (2000): 0.020549 sq. miles (0.053221 sq. km) Total area (2000): 2.123464 sq. miles (5.499745 sq. km) FIPS code: 29119 Located within: Illinois (IL), FIPS 17 Location: 40.465653 N, 88.374711 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gibson, IL Gibson