Highwood, IL -- U.S. city in Illinois Population (2000): 4143 Housing Units (2000): 1604 Land area (2000): 0.632320 sq. miles (1.637702 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.632320 sq. miles (1.637702 sq. km) FIPS code: 34865 Located within: Illinois (IL), FIPS 17 Location: 42.205357 N, 87.812345 W ZIP Codes (1990): 60040 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Highwood, IL Highwood