Hauppauge, New York, United States [CDP]; population was 19,750 in 1990; housing units was 6,597 in 1990; location is 40°49'N 73°13'W; land area is 10.81 square miles (6,917 acres); water area is 0.15 square miles (96 acres); FIPS code is 32732 [SourceCBP]