Mahaska County is in Central Iowa. Of the 99 counties in the state, Mahaska County is 44th in terms of its size (573 square miles). Recent Land Network data totals roughly 1,000 acres of residential land and property for sale in Iowa's Mahaska County, which is valued at a combined $9 million. The average price of residential land for sale in Mahaska County was $436,500. 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.