Joint Base Charleston (IATA: CHS, ICAO: KCHS, FAA LID: CHS) is a United States military facility located partly in the city of North Charleston, South Carolina and partly in the city of Goose Creek, South Carolina.

[citation needed] Today, Joint Base Charleston, encompassing over 20,877 acres and supporting 67 Military Commands and Federal Agencies, provides service to over 79,000 Airmen, Sailors, Soldiers, Marines, Coast Guardsmen, DoD civilians, dependents, and retirees.

The 628th Air Base Wing's primary duties are to provide installation support to 53 DoD and Federal agencies, servicing a total force of over 79,000 Airmen, Sailors, Soldiers, Marines, Coast Guardsmen, civilians, dependents, and retirees on Charleston Air Force Base and Naval Weapons Station Charleston.

The 628th Air Base Wing attained Full Operational Capability (FOC) on 1 October 2010 with an event taking place at Marrington Plantation at the Naval Weapons Station.

[citation needed] In addition, the Charleston Naval Shipyard repaired frigates, destroyers, cruisers, sub tenders, and submarines.

[citation needed] The Naval Support Activity has expanded its mission and Department of Defense support role with over 40 tenant commands, and today is a training center, with the Naval Nuclear Power Training Command (NNPTC), Nuclear Power Training Unit, Propulsion Facility, and Border Patrol satellite academy; Naval Consolidated Brig, Charleston; Mobile Mine Assembly Unit; Explosive Ordnance Detachments; Marine Corps Reserve Center; an engineering complex, with the Naval Information Warfare Center Atlantic[3] (NIWC, this is the largest employer in the Charleston area) and is close to the Naval Facilities Engineering Command Southeast; 269 above-ground ammunition magazines, maintenance and storage of military ordnance including mines, and serves as an Army logistics hub, the busiest continental United States surface port in the defense transportation system.

The unit will handle items such as building and grounds services, supply and civil engineering and public works.

The Coast Guard Base began construction in 2024 of the $160 million project to build a new headquarters, renovate of one pier, and repair a shoreside bulkhead.

Also, a $60 million contract was awarded to renovate the NOAA pier and construct shoreside power and warehouse facilities.