Half Moon Bay, California, United States [City]; population was 8,886 in 1990; housing units was 3,402 in 1990; location is 37°28'N 122°26'W; land area is 6.47 square miles (4,141 acres); water area is 0.02 square miles (15 acres); FIPS code is 31708 [SourceCBP]