South Texas is typically classified as the area between the San Antonio metro area and south to the Rio Grande and Gulf of Mexico. The overall value of land and rural real estate for sale in Starr County, Texas, recently on Land.com was around $99 million. This represents almost 7,000 acres of land for sale in Starr County. Starr County ranks 169th out of 254 counties in the Lone Star State for the total number of acres of land currently advertised for sale. Among cities in Starr County with land and rural real estate for sale, Rio Grande City had 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 the state.