 sayville is a hamlet and census-designated place in suffolk county, new york, united states. located on the south shore of long island in the town of islip, the population of the cdp was 16,853 at the time of the 2010 census. ==history== the earliest known inhabitants of sayville were the secatogue tribe of the algonquian peoples. sayville was founded by john edwards (b. 1738) of east hampton, new york. he built his home, the first in sayville, in 1761, located at what is now the northwest corner of foster a
Census-designated_places_in_New_York Census-designated_places_in_Suffolk_County,_New_York Hamlets_in_New_York Hamlets_in_Suffolk_County,_New_York Islip_(town),_New_York Populated_coastal_places_in_New_York