Southold, New York, United States [CDP]; population was 5,192 in 1990; housing units was 3,539 in 1990; location is 41°4'N 72°26'W; land area is 10.44 square miles (6,682 acres); water area is 0.87 square miles (555 acres); FIPS code is 69452 [SourceCBP]