Land for sale in North Dakota's Grand Forks County recently totaled almost $2 million and around 2,000 acres. Grand Forks County ranks 23rd out of 53 counties in the Peace Garden State for the combined amount of land currently advertised for sale. Of all land for sale in Grand Forks County, Northwood had the most land for sale. Government and state-level services are the main economic drivers in Grand Forks County. Grand Forks County is North Dakota's 18th biggest county (1,439 square miles). It's located in the Northeast North Dakota region of North Dakota.