Lido Beach, New York, United States [CDP]; population was 2,786 in 1990; housing units was 1,289 in 1990; location is 40°36'N 73°36'W; land area is 1.71 square miles (1,092 acres); water area is 0.01 square miles (9 acres); FIPS code is 42279 [SourceCBP]