Mercer County is in Central North Dakota. Of the 53 counties in the Peace Garden State, Mercer County is 35th in terms of its size (1,112 square miles). Mercer County, North Dakota, includes roughly 1,000 acres of residential land for sale based on recent Land Network data. The combined market value of ranches, farms, hunting land and other rural land and acreage for sale here was nearly $5 million. The average price of residential land for sale in Mercer County was $374,192. Browse all residential land and rural property for sale in North Dakota to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.