Portions of the township have since separated to create East Brunswick (February 28, 1860) and Milltown (January 29, 1889). North Brunswick Township was incorporated on February 21, 1798, by the New Jersey Legislature's Township Act of 1798 as one of the state's initial group of 104 townships. North Brunswick was first mentioned in Middlesex Freeholder Board minutes of February 28, 1779. European settlers from France and The Netherlands acquired land in 1772 from the Lenape that would become North Brunswick. The area that would become North Brunswick had been settled by the Lenape Native Americans. Alternatively, the city gets its name from King George II of Great Britain, the Duke of Brunswick-Lüneburg.

North and South Brunswick, in turn, became the namesakes for East Brunswick. Brunswick comes from New Brunswick, which was named after the German city of Braunschweig, formerly translated in English as Brunswick or for the British royal House of Brunswick. It was named named for its earlier-established neighbor, South Brunswick. North Brunswick is located south of New Brunswick. As of the 2020 United States census, the township's population was 43,905, an increase of 3,163 (+7.8%) from the 2010 census count of 40,742, which in turn reflected an increase of 3,455 (+12.3%) from the 36,287 counted in the 2000 census. It is centrally located in the Raritan Valley region within the New York metropolitan area.

North Brunswick is a township in Middlesex County, in the U.S.

North brunswick township new jersey