Washington Township is a township in Gloucester County, New Jersey, United States. As of the United States 2000 Census, the township population was 47,114. The United States Census Bureau estimated that by 2006, the population had grown to 51,827.In 2008, CNN/Money and Money Magazine ranked Washington Township 58th on its list of the 100 Best Cities to Live in the United States.Turnersville is a census-designated place and unincorporated area located within Washington Township.Washington Township was incorporated by an Act of the New Jersey Legislature on February 17, 1836, from portions of Deptford Township. The Township officially moved to the newly created Camden County on March 13, 1844. Monroe Township was created on March 3, 1859, from part of the township. Most of Washington Township, along with all of Monroe Township, was moved back into Gloucester County on February 28, 1871, with the remaining portions of Washington Township that were still in Camden County being transferred to Gloucester Township. Additional transfers to Gloucester Township were made in 1926 and 1931.