There are 3 US Post Offices in Kimble County serving a total of 4,413 residents equating to 1,471 residents per post office. It's estimated that approximately 7,044 packages are handled across the 3 county post offices annually. Kimble County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2010 census, its population was 4,607. Its county seat is Junction. The county was created in 1858 and organized in 1876. It is named for George C. Kimble, who died at the Battle of the Alamo."