Mifflin County is in Alleghenies & Valleys Pennsylvania. Of the 67 counties in the state, Mifflin County ranks 54th in terms of size (265,418 acres). Recent listings of residential land for sale in Pennsylvania's Mifflin County totals 1,000 acres and a combined market value of nearly $4 million. The most common type of land for sale by combined acreage in Mifflin County is house. The average price of residential land for sale in Mifflin County was $387,559. Browse all residential land and rural property for sale in Pennsylvania to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.