There are 5 US Post Offices in Whitley County serving a total of 51,004 residents equating to 10,201 residents per post office. It's estimated that approximately 81,408 packages are handled across the 5 county post offices annually. Whitley County is a county situated in the U.S. state of Kentucky. As of the 2010 census, the population was 35,637. The county seat is at Williamsburg, though the largest city is Corbin, and the county's District Court (a trial court of limited jurisdiction) sits in both cities. Whitley County is included in the London, KY Micropolitan Statistical Area."