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 almost $108 million of farms, ranches, hunting land and other land for sale in Texas's Starr County recently on Land.com. The total acreage of all Starr County land for sale was 100,000 acres. Starr County ranks 168th in the Lone Star State for the total acreage of land currently advertised for sale. Among cities in Starr County with farms, ranches, hunting land and other land for sale, Rio Grande City featured 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.