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 $115 million of land and rural real estate for sale in Frio County recently on Land.com. The total size of all Frio County land for sale was almost 100,000 acres. Frio County ranks 156th out of 254 counties in the Lone Star State for the combined amount of land currently advertised for sale. Of all locations in Frio County with farms, ranches, and rural real estate for sale, Moore had the most land for sale. Economically speaking, Frio County's is largely dependent on mining and mineral extraction-related businesses and services. Frio County is Texas's 50th largest county (1,134 square miles). It's located in the Edwards Plateau South Texas region of the state.