East Brunswick is a township in Middlesex County, New Jersey, United States. The township is considered a suburb of New York City, and to a lesser degree Philadelphia, and is located on the southern shores of the Raritan River, and is directly adjacent to the city of New Brunswick. According to the 2010 United States Census, the township's population was 47,512, reflecting an increase of 756 (+1.6%) from the 46,756 counted in the 2000 Census, which had in turn increased by 3,208 (+7.4%) from the 43,548 counted in the 1990 Census.