There are 10 US Post Offices in Mecklenburg County serving a total of 32,959 residents equating to 3,296 residents per post office. It's estimated that approximately 52,606 packages are handled across the 10 county post offices annually. Mecklenburg County is a county located in the Commonwealth of Virginia. As of the 2010 census, the population was 50,727. Its county seat is Boydton."