JB Charleston (Air Base) is located about 10 miles from downtown Charleston, South Carolina, on approximately 3,400 acres of land within the North Charleston city limits in Charleston County.
It is in the heart of the Lowcountry, the portion of historic South Carolina where pine and oak forests meet with the natural beauty of Intercoastal Waterway marshes and gorgeous barrier island beaches.
The Navy has several units in Charleston, as does the Coast Guard. (Source: militaryinstallations.dod.mil)