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 combined around $712 million of farms and ranches for sale in Hidalgo County recently on Land.com. The total acreage of all Hidalgo County farms and ranches for sale was approximately 100,000 acres. Hidalgo County ranks 21st out of 254 counties in the state for the total acreage of land currently advertised for sale. There were three properties listed as sold in Hidalgo County through the Land Network Comparable Sales Program. This represented a total value of $3,403,820. Edinburg had the most land for sale. Hidalgo County is Texas's 18th biggest county (1,582 square miles). It's located in the Lower Rio Grande Valley Texas region of the state.