A total of around 3,000 acres were listed for sale in Westmoreland County recently, representing a total value of approximately $102 million in Westmoreland County farms, hunting land and other rural land and acreage for sale. Westmoreland County ranks ninth out of 67 counties in the Keystone State for the total acreage of land currently advertised for sale. Of all locations in Westmoreland County with land for sale, Murrysville had the most land for sale. Westmoreland County is one of the ten biggest counties in Pennsylvania (1,036 square miles). It's located in the Pittsburgh & Countryside Pennsylvania region of the state.