The combined value of farms, ranches, and rural real estate for sale in Iowa's Jackson County recently on Land.com was almost $10 million. This represents approximately 1,000 acres of farms and ranches for sale in Jackson County. Jackson County ranks 83rd in the Hawkeye State for the combined amount of land currently advertised for sale. Of all farms, ranches, and rural real estate for sale in Jackson County, Maquoketa featured the most land for sale. Jackson County is the 19th biggest county (649 square miles) in Iowa. It's located in the Eastern Iowa region of Iowa.