Land for sale in North Dakota's Grand Forks County recently totaled nearly $2 million and 1,000 acres. Grand Forks County ranks 21st in the Peace Garden State for the combined amount of land currently advertised for sale. Among cities in Grand Forks County with farms, ranches, hunting land and other land for sale, Northwood featured 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 largest county (1,439 square miles). It's located in the Northeast North Dakota region of the state.