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 approximately 100,000 acres were listed for sale in Starr County recently; the combined value of all Starr County land and rural real estate for sale was nearly $73 million. Starr County ranks 167th out of 254 counties in the Lone Star State for the total number of acres of land currently advertised for sale. Of all locations in Starr County with land for sale, Rio Grande City featured the most land for sale. Starr County is Texas's 41st largest county (1,229 square miles). It's located in the Rio Grande Plains Texas region of Texas.