Mahaska County is in Central Iowa. Of the 99 counties in the Hawkeye State, 366,974-acre Mahaska County ranks 44th by size. Recent listings of residential land for sale in Mahaska County, Iowa, totals nearly 1,000 acres and a combined market value of around $9 million. The most common type of land for sale by combined acreage in Mahaska County is residential property. The average price of residential land for sale in Mahaska County was $471,050. 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.