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. A total of around 100,000 acres were listed for sale in Blanco County recently, representing a total value of approximately $709 million in Blanco County farms and ranches for sale. Blanco County ranks 56th out of 254 counties in Texas for the combined amount of land currently advertised for sale. There were six properties listed as sold in Blanco County through the Land Network Comparable Sales Program. This represented a total value of $10,379,001. Of all locations in Blanco County with land and rural real estate for sale, Blanco had the most land for sale. Based on its natural assets, Blanco County's economy is dependent on tourism and recreation. Blanco County is Texas's 219th largest county (713 square miles). It's located in the Hill Country South Texas region of Texas.