Watermill, New York, United States [CDP]; population was 1,893 in 1990; housing units was 1,703 in 1990; location is 40°56'N 72°21'W; land area is 14.72 square miles (9,419 acres); water area is 1.62 square miles (1,035 acres); FIPS code is 78575 [SourceCBP]
