Bismarck () is the capital of the U.S. state of North Dakota and the county seat of Burleigh County. It is the second-most populous city in North Dakota after Fargo. The city's population was estimated in 2020 at 74,018, while its metropolitan population was 129,641. In 2019, Forbes magazine ranked Bismarck as the seventh fastest-growing small city in the United States.Bismarck was founded by European-Americans in 1872 on the east bank of the Missouri River. It has been North Dakota's capital city since 1889, when the state was created from the Dakota Territory and admitted to the Union.
Bismarck is across the river from Mandan, named after a historic Native American tribe of the area. The two cities make up the core of the Bismarck–Mandan Metropolitan Statistical Area.
The North Dakota State Capitol, the tallest building in the state, is in central Bismarck. The state government employs more than 4,600 in the city. As a hub of retail and health care, Bismarck is the economic center of south-central North Dakota and north-central South Dakota.