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 combined 100,000 acres were listed for sale in Texas's Grimes County recently; the overall value of all Grimes County land and rural real estate for sale was around $461 million. Grimes County ranks 47th in the Lone Star State for the combined amount of land currently advertised for sale. There were 11 properties listed as sold in Grimes County through the Land Network Comparable Sales Program. This represented a total value of $13,400,122. Among cities in Grimes County with farms and ranches for sale, Plantersville featured the most land for sale. Manufacturing and related services are the largest economic sectors in Grimes County. Grimes County is Texas's 203rd largest county (801 square miles). It's located in the Brazos Texas region of the state.