Land for sale in McLean County, North Dakota, recently totaled approximately $15 million and approximately 3,000 acres. McLean County ranks ninth based on the combined acreage of land for sale of the 53 counties in the Rough Rider State. Garrison had the most land for sale. McLean County has a large agricultural economy, with 868 farms recorded in the county during the latest U.S. Census. Farming activities in McLean County generate annual revenues of $17 million, most of which is from crops. McLean County is one of the ten biggest counties in North Dakota (2,328 square miles). It's located in the Central North Dakota region of the state.