Islip (/ˈaɪslɪp/ EYE-slip) is one of ten towns in Suffolk County, New York (USA). Located on the South Shore of Long Island, the town population was 335,543 at the 2010 census. Within the Town of Islip is a smaller, unincorporated hamlet and census-designated place also named Islip.
According to the United States Census Bureau, the town has a total area of 163.1 square miles (422.5 km²), of which, 105.3 square miles (272.7 km²) is land and 57.8 square miles (149.8 km²) (35.46%) is water.
The Town of Islip has the following boundaries: to the west, the Town of Babylon (at approximately route 231); to the east, the Town of Brookhaven (at approximately Nicoll’s Road); to the north, the Town of Smithtown (at approximately the Long Island Expressway); and to the south, the Atlantic Ocean. The town includes part of Fire Island and the Great South Bay.
At the 2000 census, there were 322,612 people, 98,936 households and 78,555 families residing in the town. The population density was 3,064.5 per square mile (1,183.1/km²). There were 104,278 housing units at an average density of 990.5 per square mile (382.4/km²). The racial makeup of the town was 77.25% White, 9.02% Black or African American, 0.26% Native American, 2.17% Asian, 0.05% Pacific Islander, 8.32% from other races, and 2.93% from two or more races. Hispanic or Latino of any race were 20.16% of the population.
There were 98,936 households of which 39.4% had children under the age of 18 living with them, 62.4% were married couples living together, 12.3% had a female householder with no husband present, and 20.6% were non-families. 16.2% of all households were made up of individuals and 6.4% had someone living alone who was 65 years of age or older. The average household size was 3.22 and the average family size was 3.55.
27.4% of the population were under the age of 18, 8.1% from 18 to 24, 32.4% from 25 to 44, 22.2% from 45 to 64, and 9.9% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 96.7 males. For every 100 females age 18 and over, there were 93.1 males.
According to a 2006 estimate, the median household income was $78,991, and the median family income was $86,190. Males had a median income of $49,069 versus $33,660 for females. The per capita income for the town was $29,699. About 4.1% of families and 6.2% of the population were below the poverty line, including 7.9% of those under age 18 and 7.0% of those age 65 or over.
11705, 11706, 11716, 11717, 11718, 11722, 11730, 11739, 11749, 11751, 11752, 11760, 11769, 11770, 11782, 11795, 11796, 11702 (part), 11729 (part), 11742 (part), 11741 (part)