Lihue, HI -- U.S. Census Designated Place in Hawaii Population (2000): 5674 Housing Units (2000): 2399 Land area (2000): 6.316321 sq. miles (16.359196 sq. km) Water area (2000): 0.793699 sq. miles (2.055672 sq. km) Total area (2000): 7.110020 sq. miles (18.414868 sq. km) FIPS code: 45200 Located within: Hawaii (HI), FIPS 15 Location: 21.974810 N, 159.365576 W ZIP Codes (1990): 96766 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lihue, HI Lihue