Harrison County is in Western Iowa. Of the 99 counties in the Hawkeye State, Harrison County is 15th in terms of its size (701 square miles). Harrison County, Iowa, includes about 1,000 acres of residential land for sale based on recent Land Network data. The combined market value of land for sale here was around $7 million. The average price of residential land for sale in Harrison County was $298,922. The county has a rural, farm-based economy. 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.