The Federal Correctional Institution, Fort Dix (FCI Fort Dix) is a low-security United States federal prison for male offenders in New Jersey. It is operated by the Federal Bureau of Prisons. A satellite prison camp houses minimum-security male inmates. FCI Fort Dix is located in Burlington County adjacent to Joint Base McGuire-Dix-Lakehurst. It is approximately 40 miles (64 km) from Philadelphia. Fort Dix is the largest single federal prison in the United States in the number of inmates housed there.