The overall value of farms and rural land for sale in Pennsylvania's Clarion County recently on Land.com was almost $26 million. This represents almost 2,000 acres of farms, hunting land and other rural land and acreage for sale in Clarion County. Clarion County ranks 43rd out of 67 counties in the Keystone State for the total acreage of land currently advertised for sale. Clarion had the most land for sale. Clarion County is the 38th largest county (609 square miles) in Pennsylvania. It's located in the Great Lakes & Wilds Pennsylvania region of Pennsylvania.