The value of farms, ranches, and rural real estate for sale in North Dakota's Mercer County recently on Land.com was approximately $6 million. This represents approximately 1,000 acres of ranches, farms, hunting land and other rural land and acreage for sale in Mercer County. Mercer County ranks ninth in North Dakota for the combined amount of land currently advertised for sale. Beulah 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 largest county (1,112 square miles) in North Dakota. It's located in the Central North Dakota region of North Dakota.