What is "nikiski"

Population (2000): 4327
Housing Units (2000): 1766
Land area (2000): 69.618120 sq. miles (180.310095 sq. km)
Water area (2000): 6.595383 sq. miles (17.081962 sq. km)
Total area (2000): 76.213503 sq. miles (197.392057 sq. km)
FIPS code: 54050
Located within: Alaska (AK), FIPS 02
Location: 60.707891 N, 151.262646 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: