The value of all farms, rural land, hunting land and other land for sale in Mifflin County recently was almost $7 million, representing a combined 776 acres of land for sale in Mifflin County. Mifflin County ranks 65th in the Independence State for the combined amount of land currently advertised for sale. Of all farms and rural real estate for sale in Mifflin County, Lewistown featured the most land for sale. Manufacturing and related services are the largest economic sectors in Mifflin County. Mifflin County is the 54th largest county (414 square miles) in Pennsylvania. It's located in the Alleghenies & Valleys Pennsylvania region of the state.