Ninilchik, Alaska, United States [CDP]; population was 456 in 1990; housing units was 330 in 1990; location is 60°4'N 151°38'W; land area is 38.21 square miles (24,452 acres); water area is 36.53 square miles (23,378 acres); FIPS code is 54480 [SourceCBP]