Of 53 counties in the Rough Rider State, Mercer County ranks 35th by size (1,112 square miles). Mercer County is in Central North Dakota. There is nearly 1,000 acres of lakefront land and property for sale in Mercer County, North Dakota, based on recent Land Network data. The combined market value of land for sale here is almost $2 million. Browse all waterfront property for sale in Mercer County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Mercer County is residential property.