Harvey, IL -- U.S. city in Illinois Population (2000): 30000 Housing Units (2000): 10158 Land area (2000): 6.195585 sq. miles (16.046490 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 6.195585 sq. miles (16.046490 sq. km) FIPS code: 33383 Located within: Illinois (IL), FIPS 17 Location: 41.610934 N, 87.651895 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Harvey, IL Harvey