North Amityville is a hamlet and census-designated place (CDP) in Suffolk County, New York, United States. Located within the Town of Babylon, the population was 17,862 at the 2010 Census.
North Amityville residents are currently served by the Amityville Union Free School District, Copiague Union Free School District, and Farmingdale Union Free School District.
According to the United States Census Bureau, the hamlet has a total area of 2.35 square miles (6.1 km2),
As of the census of 2010, there were 17,862 people, and 5,289 households with an average of 3.26 persons per household residing in the hamlet. The population density was 7,587.9 square miles (19,653 km2). The racial makeup of the CDP was 35.8% African American, 27.5% White, 1.4% Native American, 11.2% Asian, 0.1% Pacific Islander, 12.8% from other races, and 6.7% from two or more races. Hispanic or Latino of any race were 34.7% 6,237 of the population.
The population in North Amityville was 7.0% under the age of 5, 27.0% under the age of 18, and 12.2% over the age of 65. Females make up 53.9% of the population.
There were 5,636 housing units, of which 25.8% were in multi-unit structures. The homeownership rate was 62.3%.