Benton County is in Eastern Iowa. Of the 99 counties in the Hawkeye State, Benton County is 12th in terms of its size (718 square miles). Benton County, Iowa, has approximately 1,000 acres of residential land for sale based on recent Land Network data. The combined market value of farms, ranches, hunting land and other land for sale here was approximately $6 million. The average price of residential acreage for sale in Benton County was $286,611. 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.