South Texas is typically classified as the area between the San Antonio metro area and south to the Rio Grande and Gulf of Mexico. A total of nearly 100,000 acres were listed for sale in Texas's Hidalgo County recently, representing a combined nearly $550 million in Hidalgo County ranches, farms, hunting land and other rural land and acreage for sale. Hidalgo County ranks ninth in the state for the total number of acres of land currently advertised for sale. Of all locations in Hidalgo County with farms, ranches, and rural real estate for sale, Edinburg featured the most land for sale. Hidalgo County is the 18th biggest county (1,582 square miles) in Texas. It's located in the Lower Rio Grande Valley Texas region of the state.