Dixon, IL -- U.S. city in Illinois Population (2000): 15941 Housing Units (2000): 6138 Land area (2000): 6.326195 sq. miles (16.384768 sq. km) Water area (2000): 0.421237 sq. miles (1.091000 sq. km) Total area (2000): 6.747432 sq. miles (17.475768 sq. km) FIPS code: 20162 Located within: Illinois (IL), FIPS 17 Location: 41.846130 N, 89.485115 W ZIP Codes (1990): 61021 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Dixon, IL Dixon