About This Place
Sound Beach was established in 1929 and is a census-designated place (CDP) in Suffolk County, New York, United States. The population was 9,807 at the 2000 census.
Sound Beach is a community in the north part of the Town of Brookhaven.
Sound Beach is located at 40°57′25″N 72°58′15″W / 40.95694°N 72.97083°W / 40.95694; -72.97083 (40.956986, -72.970765).