The central region of Texas covers the state's three largest cities: Houston, Dallas-Fort Worth and San Antonio. The limestone terrain of Texas Hill Country lies in Central Texas, as do the state's three largest rivers, the Trinity, the Brazos and the Colorado. The value of all ranches, farms, hunting land and other rural land and acreage for sale in Blanco County recently was nearly $734 million, representing a total of 20,053 acres of land for sale in Blanco County. Blanco County ranks 57th in Texas for the total number of acres of land currently advertised for sale. There were three properties listed as sold in Blanco County through the Land Network Comparable Sales Program. This represented a total value of $25,942,220. Blanco featured the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward Blanco County's overall GDP. Blanco County is the 219th largest county (713 square miles) in Texas. It's located in the Hill Country South Texas region of Texas.