King George County
There are 6 US Post Offices in King George County serving a total of 23,603 residents equating to 3,934 residents per post office. It's estimated that approximately 37,673 packages are handled across the 6 county post offices annually. King George County is a county located in the Commonwealth of Virginia. As of the 2010 census, the population was 23,584. Its county seat is King George. The county's largest employer is the U.S. Naval Surface Warfare Center Dahlgren Division. It is adjacent to the two-lane, 2-mile long Harry W. Nice Memorial Bridge carrying U.S. Highway 301 over the Potomac River. It contains the ZIP codes 22448 (Dahlgren) and 22485 (all other areas within King George). It is within the area code 540 and contains the exchanges: 775, 644, 663, and 653."