The total value of land for sale in Iowa's Jackson County recently on Land.com was around $10 million. This represents around 1,000 acres of land and rural real estate for sale in Jackson County. Jackson County ranks 81st out of 99 counties in Iowa for the combined amount of land currently advertised for sale. Of all farms, ranches, hunting land and other land for sale in Jackson County, Maquoketa featured the most land for sale. Jackson County is Iowa's 19th biggest county (649 square miles). It's located in the Eastern Iowa region of the state.