East Windsor Township is a township in Mercer County, New Jersey, United States. As of the 2010 United States Census, the township's population was 27,190, reflecting an increase of 2,271 (+9.1%) from the 24,919 counted in the 2000 Census, which had in turn increased by 2,566 (+11.5%) from the 22,353 counted in the 1990 Census.Both East Windsor Township and West Windsor Township were formed when Windsor Township was split on February 9, 1797, while the area was still part of Middlesex County. It was incorporated by an act of the New Jersey Legislature on February 21, 1798, as one of New Jersey's initial group of 104 townships. Portions of the township were taken to form Hightstown borough (March 5, 1853, within East Windsor; became independent c. 1894) and Washington Township (March 11, 1860, and known as Robbinsville Township since 2007). The township was named for Windsor Township, which was named for Windsor, England.GeographyAccording to the United States Census Bureau, the township had a total area of 15.745 square miles (40.779 km2), including 15.648 square miles (40.529 km2) of land and 0.097 square miles (0.250 km2) of water (0.61%).
