There are 5 US Post Offices in Uvalde County serving a total of 26,532 residents equating to 5,306 residents per post office. It's estimated that approximately 42,348 packages are handled across the 5 county post offices annually. Uvalde County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 26,405. Its county seat is Uvalde. The county was created in 1850 and organized in 1856. It is named for Juan de Ugalde, the Spanish governor of Coahuila. Uvalde County was founded by Reading Wood Black who also founded the city of Uvalde, Texas. Uvalde County comprises the Uvalde, TX Micropolitan Statistical Area."