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 combined around 7,000 acres were listed for sale in Starr County recently; the combined value of all Starr County farms and ranches for sale was approximately $99 million. Starr County ranks 169th in the Lone Star State for the combined amount of land currently advertised for sale. Of all locations in Starr County with land 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 Texas.