Land for sale in Minnesota's Jackson County recently totaled almost $5 million and around 1,000 acres. Jackson County ranks 74th in the Gopher State for the total acreage of land currently advertised for sale. Jackson featured the most land for sale. Jackson County has a large agricultural economy, with 826 farms recorded in the county during the latest 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 biggest county (719 square miles) in Minnesota. It's located in the Southern Minnesota region of the state.