There are 5 US Post Offices in Reeves County serving a total of 13,816 residents equating to 2,763 residents per post office. It's estimated that approximately 22,052 packages are handled across the 5 county post offices annually. Reeves County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 13,783. Its county seat is Pecos. The county was created in 1883 and organized the next year. It is named for George R. Reeves, a Texas state legislator and colonel in the Confederate Army. It is one of the nine counties that comprise the Trans-Pecos region of West Texas. Reeves County comprises the Pecos, TX Micropolitan Statistical Area."