Fort Dix, the common name for the Army Support Activity located at Joint Base McGuire–Dix–Lakehurst, is a United States Army post. It is located 16.1 miles south-southeast of Trenton, New Jersey. Fort Dix is under the jurisdiction of the Air Force Air Mobility Command. As of the 2020 U.S. census, Fort Dix census-designated place had a total population of 7,…Fort Dix, the common name for the Army Support Activity located at Joint Base McGuire–Dix–Lakehurst, is a United States Army post. It is located 16.1 miles south-southeast of Trenton, New Jersey. Fort Dix is under the jurisdiction of the Air Force Air Mobility Command. As of the 2020 U.S. census, Fort Dix census-designated place had a total population of 7,716, of which 5,951 were in New Hanover Township, 1,765 were in Pemberton Township, and none were in Springfield Township.