South Orange, officially the Township of South Orange Village, is a suburban township in Essex County, New Jersey, United States. As of the 2010 United States Census, the village's population was 16,198, reflecting a decline of 766 from the 16,964 counted in the 2000 Census, which had in turn increased by 574 from the 16,390 counted in the 1990 Census. Seton Hall University is located in the township."The time and circumstances under which the name South Orange originated will probably never be known," wrote historian William H. Shaw in 1884, "and we are obliged to fall back on a tradition, that Mr. Nathan Squier first used the name in an advertisement offering wood for sale" in 1795. Other sources attribute the derivation for all of The Oranges to King William III, Prince of Orange.Of the 565 municipalities in New Jersey, South Orange Village is one of only four with a village type of government; the others are Loch Arbour, Ridgefield Park and Ridgewood.