Located in Western Iowa, 863-square-mile Plymouth County is one of the ten biggest counties in the Hawkeye State. There is roughly 1,000 acres of residential land for sale in Plymouth County, Iowa, based on recent Land Network data, making it the most common type of land for sale in Plymouth County. The combined market value of land and rural real estate for sale here is around $15 million. The average price of residential land for sale in Plymouth County was $251,450. 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.