Nikolai, AK -- U.S. city in Alaska Population (2000): 100 Housing Units (2000): 47 Land area (2000): 4.526877 sq. miles (11.724557 sq. km) Water area (2000): 0.348894 sq. miles (0.903630 sq. km) Total area (2000): 4.875771 sq. miles (12.628187 sq. km) FIPS code: 54150 Located within: Alaska (AK), FIPS 02 Location: 63.010838 N, 154.383895 W ZIP Codes (1990): 99691 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Nikolai, AK Nikolai