Land for sale in Jackson County, Minnesota, recently totaled nearly $7 million and almost 1,000 acres. Jackson County ranks 73rd in the Land of 10,000 Lakes for the combined amount of land currently advertised for sale. Among cities in Jackson County with land for sale, Heron Lake had the most land for sale. Its economy is defined as agricultural, with 826 farms recorded in the county during the most recent U.S. Census. Farming activities in Jackson County generate annual revenues of $12 million, most of which is from crops. Jackson County is the 43rd largest county (719 square miles) in Minnesota. It's located in the Southern Minnesota region of the state.