Adak, AK -- U.S. Census Designated Place in Alaska Population (2000): 316 Housing Units (2000): 884 Land area (2000): 122.353062 sq. miles (316.892962 sq. km) Water area (2000): 4.932945 sq. miles (12.776268 sq. km) Total area (2000): 127.286007 sq. miles (329.669230 sq. km) FIPS code: 00065 Located within: Alaska (AK), FIPS 02 Location: 51.883419 N, 176.645061 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Adak, AK Adak