A combined 1,000 acres were listed for sale in Montour County recently; the value of all Montour County land for sale was around $6 million. Montour County ranks 65th out of 67 counties in the Keystone State for the total acreage of land currently advertised for sale. Danville had the most land for sale. Montour County is the 67th biggest county (132 square miles) in Pennsylvania. It's located in the Alleghenies & Valleys Pennsylvania region of Pennsylvania.