Marshall County is in Central Iowa. Of the 99 counties in the Hawkeye State, 366,847-acre Marshall County ranks 47th by size. Recent listings of residential land and property for sale in Iowa's Marshall County totals almost 1,000 acres and a combined market value of nearly $15 million. The most common type of land for sale by combined acreage in Marshall County is undeveloped land. The average price of residential acreage for sale in Marshall County was $255,450. 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.