Marion County is in Central Iowa. Of the 99 counties in the Cyclone State, 365,124-acre Marion County ranks 55th by size. Recent listings of residential land and property for sale in Iowa's Marion County totals nearly 1,000 acres and a combined market value of approximately $24 million. The most common type of land for sale by combined acreage in Marion County is residential property. The average price of residential land for sale in Marion County was $494,732. 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.