A combined almost 1,000 acres were listed for sale in Pennsylvania's Mifflin County recently; the value of all Mifflin County farmsand rural real estate for sale was around $8 million. Mifflin County ranks 64th out of 67 counties in the Keystone State for the total number of acres of land currently advertised for sale. Of all locations in Mifflin County with farms and rural real estate for sale, Lewistown had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Mifflin County. Mifflin County is Pennsylvania's 54th biggest county (414 square miles). It's located in the Alleghenies & Valleys Pennsylvania region of Pennsylvania.