The value of farmsand rural real estate for sale in Pennsylvania's Berks County recently on Land.com was almost $107 million. This represents 2,000 acres of farms, rural land, hunting land and other land for sale in Berks County. Berks County ranks 19th out of 67 counties in Pennsylvania for the combined amount of land currently advertised for sale. Reading had the most land for sale. Berks County is Pennsylvania's 19th biggest county (865 square miles). It's located in the Philadelphia & Countryside Pennsylvania region of the state.