Ossining /ˈɒsɪnɪŋ/ is a town located along the Hudson River in Westchester County, New York, United States. The population was 37,674 in the 2010 census. It contains two villages, the Village of Ossining and part of Briarcliff Manor, the rest of which is located in the Town of Mount Pleasant. Ossining is the location of Sing Sing maximum-security prison.
According to the United States Census Bureau, the town has a total area of 15.6 square miles (40.4 km²), of which 11.7 square miles (30.3 km²) is land and 3.9 square miles (10.1 km²) (25.06%) is water.
Ossining is bounded on the west by the Hudson River and on the north by the Croton River.
In the census of 2000, there were 36,534 people, 12,355 households, and 8,537 families residing in the town. The population density was 3,123.0 people per square mile (1,205.6/km²). There were 12,733 housing units at an average density of 1,088.4 per square mile (420.2/km²). The racial makeup of the town was 70.26% White, 14.28% Black or African American, 0.35% Native American, 4.54% Asian, 0.02% Pacific Islander, 7.34% from other races, and 3.21% from two or more races. Hispanic or Latino of any race were 19.93% of the population.
There were 12,355 households out of which 33.1% had children under the age of 18 living with them, 54.4% were married couples living together, 10.7% had a female householder with no husband present, and 30.9% were non-families. Of all households 25.5% were made up of individuals and 9.0% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.14.
In the town, the population was spread out with 21.8% under the age of 18, 7.8% from 18 to 24, 34.5% from 25 to 44, 22.9% from 45 to 64, and 13.0% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 106.1 males. For every 100 females age 18 and over, there were 105.4 males.
The median income for a household in the town was $65,485, and the median income for a family was $81,943 (these figures had risen to $77,753 and $98,593 respectively as of a 2007 estimate). Males had a median income of $51,286 versus $40,618 for females. The per capita income for the town was $34,195. About 5.0% of families and 8.4% of the population were below the poverty line, including 8.3% of those under age 18 and 9.2% of those age 65 or over.
Ossining New York neighborhoods include: 9a 134, Briarcliff-Peekskill, Crotonville, Deerfield, Homecrest Park – Croton Dam, Kitchawan, Millwood, Mystic Pointee, Ossining, Park-Orchard-Justamere