The value of ranches, farms, hunting land and other rural land and acreage for sale in Mercer County, North Dakota, recently on Land.com was almost $6 million. This represents approximately 1,000 acres of farms and ranches for sale in Mercer County. Mercer County ranks eighth in the Peace Garden State for the total acreage of land currently advertised for sale. Of all locations in Mercer County with land for sale, Hazen had the most land for sale. Economically speaking, Mercer County's is largely dependent on mining and mineral extraction-related businesses and services. Mercer County is North Dakota's 35th biggest county (1,112 square miles). It's located in the Central North Dakota region of North Dakota.