Ossining is a town located in Westchester County and has a total area of 40,4 square kilometers. The town is encircled by the Hudson River on the west and the Croton River on the north. The town Ossining also had the name “Garfield Plains” until it received its original name in 1901. The maximum-security prison Sing-Sing, opened in 1826, is also located here, holding about 1,700 prisoners. The new town’s public library, which contains more options for visitors than the old one, was opened in 2007. It also includes a 20-seat art theater, an art gallery and other features. The total population of Ossining is 40,061 people, according to the 2020 census.