Koloa, HI -- U.S. Census Designated Place in Hawaii Population (2000): 1942 Housing Units (2000): 748 Land area (2000): 1.191804 sq. miles (3.086759 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.191804 sq. miles (3.086759 sq. km) FIPS code: 39200 Located within: Hawaii (HI), FIPS 15 Location: 21.907137 N, 159.465877 W ZIP Codes (1990): 96756 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Koloa, HI Koloa