There are 7 US Post Offices in Upshur County serving a total of 24,418 residents equating to 3,488 residents per post office. It's estimated that approximately 38,974 packages are handled across the 7 county post offices annually. Upshur County is a county located in the U.S. state of West Virginia. As of the 2010 census, the population was 24,254. Its county seat is Buckhannon. The county was formed in 1851 from Randolph, Barbour, and Lewis counties and named for Abel Parker Upshur, a distinguished statesman and jurist of Virginia. Upshur served as United States Secretary of State and Secretary of the Navy under President John Tyler."