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 land and rural real estate for sale in Texas's Washington County recently was nearly $222 million, representing a combined 11,770 acres of land for sale in Washington County. Washington County ranks 67th in the Lone Star State for the total number of acres of land currently advertised for sale. There were 10 properties listed as sold in Washington County through the Lands of America Comparable Sales Program. This represented a total value of $2,980,586. Of all farms, ranches, and rural real estate for sale in Washington County, Brenham featured the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Washington County. Washington County is Texas's 233rd biggest county (621 square miles). It's located in the Brazos Texas region of the state.