Franklin County is in Central Iowa. Of the 99 counties in the Cyclone State, Franklin County is 29th in terms of its size (582 square miles). There is about 1,000 acres of residential land for sale in Franklin County, Iowa, based on recent Land Network data. The combined market value of land for sale here is approximately $4 million. The average price of residential acreage for sale in Franklin County was $134,360. The county has a rural, farm-based economy. Browse all residential land and rural property for sale in Iowa 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.