The value of all farms, ranches, hunting land and other land for sale in Iowa's Jackson County recently was around $11 million, representing a total of 623 acres of land for sale in Jackson County. Jackson County ranks 80th out of 99 counties in the Hawkeye State for the total number of acres 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 Iowa.