There are 7 US Post Offices in Wilson County serving a total of 100,473 residents equating to 14,353 residents per post office. It's estimated that approximately 160,366 packages are handled across the 7 county post offices annually. Wilson County is a county located in the U.S. state of North Carolina. As of the 2010 Census, the population was 81,234. The county seat is Wilson. Wilson County comprises the Wilson, NC Micropolitan Statistical Area, which is also included in the Rocky Mount-Wilson-Roanoke Rapids, NC Combined Statistical Area"