There are 10 US Post Offices in Jackson County serving a total of 37,796 residents equating to 3,780 residents per post office. It's estimated that approximately 60,327 packages are handled across the 10 county post offices annually. Jackson County is a county located in the southwest of the U.S. state of North Carolina. As of the 2010 census, the population was 40,271. Since 1913 its county seat has been Sylva, replacing Webster. Jackson County comprises the Cullowhee, NC Micropolitan Statistical Area."