South Texas is typically classified as the area between the San Antonio metro area and south to the Rio Grande and Gulf of Mexico. There was a total of approximately $93 million of farms and ranches for sale in Starr County, Texas, recently on Land.com. The total size of all Starr County farms, ranches, and rural real estate for sale was almost 9,000 acres. Starr County ranks 169th in the state for the combined amount of land currently advertised for sale. Of all locations in Starr County with farms, ranches, and rural real estate for sale, Rio Grande City had the most land for sale. Starr County is Texas's 41st biggest county (1,229 square miles). It's located in the Rio Grande Plains Texas region of the state.