Burleigh County, North Dakota Burleigh County, North Dakota Burleigh County is a county located in the U.S. state of North Dakota. As of the 2010 census, the population was 81,308, making it the second-most populous county in North Dakota. Its county seat is Bismarck, the state capital. The county was created on January 4, 1873 and later organized on July 16. Burleigh County is included in the Bismarck, ND Metropolitan Statistical Area, commonly called "Bismarck–Mandan". According to the U.S. Census Bureau, the county has a total area of , of which is land and (2.1%) is water. As of the 2010 census, there were
State Historical Society of North Dakota at all levels, and also reviews and comments on federally assisted projects to ensure that historic values are considered in project planning and execution. The State Archives is responsible for the documentary collections of the State Historical Society of North Dakota. It is the official state archives, and acquires and preserves all types of research materials relating to North Dakota and the Northern Great Plains, including manuscript collections, books, periodicals, maps, newspapers, audio and video materials, and photographs. The Museum and Education Division presents the history of North Dakota through exhibits in the North Dakota Heritage Center as well as