There are 2 US Post Offices in Swisher County serving a total of 7,204 residents equating to 3,602 residents per post office. It's estimated that approximately 11,498 packages are handled across the 2 county post offices annually. Swisher County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 7,854. Its county seat is Tulia. The county was created in 1876 and later organized in 1890. It is named for James G. Swisher, a soldier of the Texas Revolution and signer of the Texas Declaration of Independence. At one time, the large JA Ranch, founded by Charles Goodnight and John George Adair, and later owned by Goodnight and Cornelia Adair, reached into six counties, including Swisher."