There are 27 US Post Offices in Wyoming County serving a total of 20,917 residents equating to 775 residents per post office. It's estimated that approximately 33,386 packages are handled across the 27 county post offices annually. Wyoming County is a county located in the U.S. state of West Virginia. As of the 2010 census, the population was 23,796. Its county seat is Pineville. The county was created in 1850 from Logan County and named for the Delaware Indian word meaning \"large plains\"."