About This Place
Seaford is a census-designated place (CDP) in Nassau County, New York, United States. The population was 15,791 at the 2000 census.
Seaford is located at 40°40′7″N 73°29′33″W / 40.66861°N 73.4925°W / 40.66861; -73.4925 (40.668702, -73.492459).
According to the United States Census Bureau, the CDP has a total area of 2.6 square miles (6.8 km²), of which, 2.6 square miles (6.7 km²) of it is land and 0.38% is water.