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 6,000 acres were listed for sale in Texas's Madison County recently, representing a total value of approximately $92 million in Madison County ranches, farms, hunting land and other rural land and acreage for sale. Madison County ranks 134th out of 254 counties in the Lone Star State for the combined amount of land currently advertised for sale. There were two properties listed as sold in Madison County through the Land Network Comparable Sales Program. This represented a total value of $2,121,665. Madisonville had the most land for sale. Government and state-level services are the main economic drivers in Madison County. Madison County is Texas's 242nd biggest county (472 square miles). It's located in the Brazos Texas region of Texas.