There are 12 US Post Offices in Avery County serving a total of 20,259 residents equating to 1,688 residents per post office. It's estimated that approximately 32,336 packages are handled across the 12 county post offices annually. Avery County is a county located in the U.S. state of North Carolina. As of the 2010 census, the population was 17,797. The county seat is Newland. The county seat was initially established in Elk Park when the county was first formed, but was moved to Newland upon completion of the courthouse in 1912. Founded in 1911, it is the youngest of North Carolina's 100 counties."