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 nearly 100,000 acres were listed for sale in Limestone County, Texas, recently, representing a combined around $159 million in Limestone County ranches, farms, hunting land and other rural land and acreage for sale. Limestone County ranks 78th in the Lone Star State for the total acreage of land currently advertised for sale. There were two properties listed as sold in Limestone County through the Land Network Comparable Sales Program. This represented a total value of $2,250,000. Of all locations in Limestone County with land and rural real estate for sale, Groesbeck featured the most land for sale. From an economic perspective, government and state-level services contribute most to Limestone County's overall GDP. Limestone County is the 108th largest county (933 square miles) in Texas. It's located in the Blacklands North Texas region of Texas.