There are 16 US Post Offices in Tazewell County serving a total of 47,574 residents equating to 2,973 residents per post office. It's estimated that approximately 75,933 packages are handled across the 16 county post offices annually. Tazewell County is a county located in the southwestern portion of the U.S. state of Virginia. As of the 2010 census, the population was 45,078. Its county seat is Tazewell. Tazewell County is part of the Bluefield, WV-VA Micropolitan Statistical Area."