New Brunswick is a city in Middlesex County, New Jersey, United States. It is the county seat of Middlesex, and the home of Rutgers University. The city is located on the Northeast Corridor rail line, 27 miles (43 km) southwest of Manhattan, on the southern bank of the Raritan River. At the 2010 United States Census, the population of New Brunswick was 55,181, reflecting an increase of 6,608 (+13.6%) from the 48,573 counted in the 2000 Census, which had in turn increased by 6,862 (+16.5%) from the 41,711 counted in the 1990 Census.