Wahpeton is a city in Richland County, North Dakota in the United States. It is the county seat of Richland County and had a population of 7,766 as of the 2010 census. Wahpeton was founded in 1869 and is the principal city of the Wahpeton Micropolitan Statistical Area, which includes all of Richland County, North Dakota and Wilkin County, Minnesota.Wahpeton's twin city is Breckenridge, Minnesota. The Bois de Sioux River and the Otter Tail River join at Wahpeton and Breckenridge to form the Red River of the North.

Provided by Wikipedia