Quinton Township is a township in Salem County, in the U.S. state of New Jersey. As of the 2010 United States Census, the township's population was 2,666, reflecting a decline of 120 from the 2,786 counted in the 2000 Census, which had in turn increased by 275 from the 2,511 counted in the 1990 Census.Quinton was formally incorporated as a township by an act of the New Jersey Legislature on February 18, 1873, from portions of Upper Alloways Creek Township. The township's name is said to derive from the name of an early settler, with both Tobias Quinton and Edward Quinton mentioned as possible namesakes. In March 1778, during the American Revolutionary War, a minor battle was fought between British forces and local militia at Quinton's Bridge.It is a dry township, where alcohol cannot be sold.