There are 1 US Post Offices in Garza County serving a total of 6,363 residents equating to 6,363 residents per post office. It's estimated that approximately 10,156 packages are handled across the 1 county post offices annually. Garza County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 6,461. Its county seat is Post. The county was created in 1876 and later organized in 1907. Garza is named for a pioneer Bexar County family, as it was once a part of that county. It is located southeast of Lubbock. A leading civic figure in Garza County was until his death in 2011 Giles McCrary, a rancher, oil developer, investor, and art collector. McCrary's OS Ranch Museum is a popular attraction in the county seat of Post, which has made an extended effort to attract tourism. Republican Drew Springer, Jr., a businessman from Muenster in Cooke County, has since January 2013 represented Garza County in the Texas House of Representatives.