Hamilton County is in Central Iowa. Of the 99 counties in the Wrestling State, 577-square-mile Hamilton County ranks 38th by size. Recent listings of residential land and property for sale in Hamilton County, Iowa, totals about 1,000 acres and a combined market value of $6 million. The most common type of land for sale by combined acreage in Hamilton County is house. The average price of residential acreage for sale in Hamilton County was $266,673. The economy here is mainly agricultural. 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.