A total of nearly 1,000 acres were listed for sale in Mercer County recently, representing a total value of approximately $6 million in Mercer County farms and ranches for sale. Mercer County ranks ninth out of 53 counties in the Sioux State for the combined amount of land currently advertised for sale. Of all locations in Mercer County with farms, ranches, and rural real estate for sale, Hazen had the most land for sale. Mining and mineral extraction-related services are the main economic drivers in this part of North Dakota. Mercer County is the 35th biggest county (1,112 square miles) in North Dakota. It's located in the Central North Dakota region of North Dakota.