Stretching out over 1,137 square miles, Williamson County offers its fertile land to nearly 550,000 residents. Seated as a part of the Austin Round Rock Texas Metropolitan statistical area, the expansive county was named after Robert McAlpin Williamson, a community leader and veteran of the Battle of Jacinto. With Austin directly south, Williamson enjoys a rich activity list which includes fishing, golfing, swimming and enjoying all the rich amenities that Sun City and Georgetown have to offer. Of 254 counties in the Lone Star State, Williamson County is 49th in terms of its size (1,134 square miles). Williamson County is in Blacklands South Texas. Recent Land Network data includes nearly 1,000 acres of timberland for sale in Texas's Williamson County, which is valued at a combined $1 million. Browse all Williamson County forest and timberland for sale on the Land Network to find the right timberland acreage for your commercial or individual investment needs. The most common type of land for sale by combined acreage in Williamson County is house.