Mandan, North Dakota
Mandan is a city on the eastern border of Morton County. It is the eighth-largest city in North Dakota. It was founded in 1879. In 1881, it was made the county seat of Morton County. In the 2020 census, the population was 24,206. Across the Missouri River from Bismarck, Mandan is a core city of the Bismarck-Mandan Metropolitan Statistical Area.