Calverton is a hamlet and census-designated place (CDP) in Suffolk County, New York, United States. The population was 6,510 at the 2010 census.
Calverton is located at 40°55′14″N 72°44′11″W / 40.92056°N 72.73639°W / 40.92056; -72.73639 (40.920535, -72.736285).
According to the United States Census Bureau, the CDP has a total area of 28.5 square miles (74 km), of which 28.0 square miles (73 km) is land and 0.5 square miles (1.3 km), or 1.82%, is water.
The former Naval Weapons Industrial Reserve Plant became the Naval Weapons Industrial Reserve Plant, Calverton (IATA code “CTO”) in the late 20th century.
As of the census of 2000, there were 5,704 people, 2,539 households, and 1,518 families residing in the CDP. The population density was 203.7 per square mile (78.7/km²). There were 2,735 housing units at an average density of 97.7/sq mi (37.7/km²). The racial makeup of the CDP was 86.61% White, 7.66% African American, 0.46% Native American, 0.95% Asian, 0.04% Pacific Islander, 2.03% from other races, and 2.26% from two or more races. Hispanic or Latino of any race were 6.07% of the population.
There were 2,539 households out of which 22.3% had children under the age of 18 living with them, 46.1% were married couples living together, 10.1% had a female householder with no husband present, and 40.2% were non-families. 34.7% of all households were made up of individuals and 19.9% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.88.
In the CDP, the population was spread out with 20.3% under the age of 18, 5.6% from 18 to 24, 27.5% from 25 to 44, 20.9% from 45 to 64, and 25.6% who were 65 years of age or older. The median age was 43 years. For every 100 females, there were 93.0 males. For every 100 females age 18 and over, there were 88.0 males.
The median income for a household in the CDP was $36,544, and the median income for a family was $44,342. Males had a median income of $40,184 versus $33,047 for females. The per capita income for the CDP was $26,609. About 6.5% of families and 10.2% of the population were below the poverty line, including 13.1% of those under age 18 and 6.6% of those age 65 or over.