Brunswick is a town in Rensselaer County, New York, United States that was first settled in the early 1700s. During its history, it had been part of Albany County, Rensselaerswyck, and Troy, before its in 1807. It is bordered on the west by the city of Troy; on the north by Schaghticoke and Pittstown; on the east by Grafton; and on the south by Poestenkill and North Greenbush. The number of people living there was 11,664 at the 2000 . The story of the town's name is fought: some say it comes from the source of its first people who lived in Germany, Brunswick-Lüneburg, while others say that it honors the "Duke of Brunswick (George I).