Sayville, New York

Sayville, New York
Downtown Sayville in 2010
U.S. Census map
Sayville
Location on Long Island
Sayville
Location within the state of New York
Coordinates: 40°44′47″N 73°4′52″W / 40.74639°N 73.08111°W / 40.74639; -73.08111
Country United States
State New York
CountySuffolk
TownIslip
Area
  Total
5.38 sq mi (13.93 km2)
  Land5.31 sq mi (13.76 km2)
  Water0.07 sq mi (0.17 km2)
Elevation
20 ft (6 m)
Population
 (2020)
  Total
16,569
  Density3,118.58/sq mi (1,204.15/km2)
Time zoneUTC-5 (Eastern (EST))
  Summer (DST)UTC-4 (EDT)
ZIP code
11782
Area codes631, 934
FIPS code36-65409
GNIS feature ID0964554

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 16,569 at the time of the 2020 census.