Poughkeepsie (/pəˈkɪpsi, poʊ-/), officially the Town of Poughkeepsie, is a town in Dutchess County, New York, United States. As of the 2020 United States Census, the population was 45,471. The name is derived from the native term Uppuqui (oo-POO-kee) meaning "lodge-covered", plus ipis meaning "little water", plus ing meaning "place", all of which translates to "the reed-covered lodge by the little water place", or Uppuqui-ipis-ing. This later evolved into Apokeepsing, then into Poughkeepsing, and finally Poughkeepsie. The area includes a large IBM campus noted for its ongoing development and manufacturing of IBM mainframes.