Middle Island, New York

Middle Island, New York
U.S. Census map
Middle Island
Location on Long Island
Middle Island
Location within the state of New York
Coordinates: 40°53′6″N 72°56′36″W / 40.88500°N 72.94333°W / 40.88500; -72.94333
Country United States
State New York
CountySuffolk
TownBrookhaven
Area
 • Total
8.28 sq mi (21.44 km2)
 • Land8.22 sq mi (21.29 km2)
 • Water0.058 sq mi (0.15 km2)
Elevation
82 ft (25 m)
Population
 (2020)
 • Total
10,546
 • Density1,283.1/sq mi (495.42/km2)
Time zoneUTC−05:00 (Eastern Time Zone)
 • Summer (DST)UTC−04:00 (EDT)
ZIP Code
11953
Area codes631, 934
FIPS code36-46976
GNIS feature ID0957111

Middle Island is a hamlet and census-designated place (CDP) within the Town of Brookhaven, in Suffolk County, on Long Island, in New York, United States. The population was 10,546 at the time of the 2020 census.

The community is situated between the hamlets of Coram and Ridge to the west and east, respectively – and the hamlets of Rocky Point and Yaphank to the north and south. The name derives from the fact that it lies approximately halfway between the eastern and western ends of Long Island (Montauk Point and the East River) as well as halfway between the northern and southern boundaries (the Long Island Sound and the Atlantic Ocean).