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Middle Island, New York
U.S. Census map
U.S. Census map
Middle Island, New York is located in New York
Middle Island, New York
Middle Island, New York
Location in New York
Country United States
State New York
County Suffolk
 • Total 0.8 sq mi (2 km2)
 • Land 8.3 sq mi (21.4 km2)
 • Water 0.08 sq mi (0.2 km2)
82 ft (25 m)
 • Total 10,483
 • Density 14,000/sq mi (5,200/km2)
Time zone UTC−05:00 (Eastern Time Zone)
 • Summer (DST) UTC−04:00 (EDT)
ZIP Code
Area code(s) 631, 934
FIPS code 36-46976
GNIS feature ID 0957111

Middle Island is a hamlet and census-designated place (CDP) in the Town of Brookhaven, Suffolk County, New York, United States. The population was 10,483 at the 2010 census. It is situated between the hamlets of Coram and Ridge, to the west and east, respectively, and 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).


Middle Island is located at 40°53′6″N 72°56′36″W / 40.88500°N 72.94333°W / 40.88500; -72.94333 (40.885095, -72.943452).

According to the United States Census Bureau, the CDP has a total area of 8.3 square miles (21.5 km2), of which 8.2 square miles (21.3 km2) is land and 0.077 square miles (0.2 km2), or 0.71%, is water.

Middle Island has many lakes such as Spring Lake, Artist Lake, and Pine Lake (which has a new dock). Middle Island also contains the headwaters of the Carmans River, which originally began at Pfeiffer's Pond on the northeast corner of NY 25 and Old Middle Island Road, but now begins within Cathedral Pines County Park.


The European-American history of Middle Island goes back at least to 1766, when the first Presbyterian church was built. Rev. David Rose, who was also a doctor and a pastor of the South Haven church, covered his immense parish on horseback. He filled his saddle bags with Bibles and medicines to minister to his frontier congregation. In 1766 the parish opened a cemetery just across from the church.

The first schoolhouse was built in 1813 east of the church. In 1837, a new church was built just to the rear of the older one. It served the community for 200 years until the new Christian Education building was built at the Longwood Estate in 1966.

Middle Island gained an influx of Estonian refugees during the 1940s and 1950s mainly around the Pine Lake area.

For over 100 years (until it was burned down in 1971), Pfeiffer's Store was a center of activity for Middle Island and surrounding communities. A nearby lake, known as Corwin's Pond, was renamed "Artist Lake" after painter Alonzo Chappel settled there in 1869.

Artist's Lake Memorial Plaque
Plaque on NY 25 at Artist Lake commemorating the spot where Ralph Johnstone's plane landed after setting altitude record of 8,471 feet (2,582 m) on October 27, 1910


As of the 2000 census, there were 9,702 people, 3,720 households, and 2,548 families residing in the CDP. The population density was 1,175.9 per square mile (454.1/km2). There were 3,900 housing units at an average density of 472.7/sq mi (182.5/km2). The racial makeup of the CDP was 85.45% White, 7.58% African American, 0.25% Native American, 2.44% Asian, 0.06% Pacific Islander, 1.92% from other races, and 2.31% from two or more races. Hispanic or Latino of any race were 6.87% of the population.

Of the 3,720 households, 31.2% had children under the age of 18 living with them, 51.0% were married couples living together, 13.2% had a female householder with no husband present, and 31.5% were non-families. 23.7% of all households were made up of individuals, and 6.9% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.01.

In the CDP, the population was spread out, with 22.5% under the age of 18, 8.2% from 18 to 24, 32.6% from 25 to 44, 22.9% from 45 to 64, and 13.7% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 90.6 males. For every 100 females age 18 and over, there were 86.9 males.

The median income for a household in the CDP was $50,818, and the median income for a family was $58,171. Males had a median income of $41,618 versus $30,516 for females. The per capita income for the CDP was $23,129. About 4.3% of families and 6.3% of the population were below the poverty threshold, including 7.9% of those under age 18 and 6.6% of those age 65 or over.


Middle Island is served by the Longwood Central School District, which at 58 square miles (150 km2) is the largest school district on Long Island. The Longwood Public Library is located in Middle Island.

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