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
North Dakota State Capitol by North Dakota architects Joseph Bell DeRemer of Grand Forks and W. F. Kurke of Fargo in conjunction with the noted Chicago firm of Holabird and Root, It is the tallest building in North Dakota and is known as the "Skyscraper on the Prairie". This tower houses the office of the governor and the offices of multiple state agencies and departments. At the tower's base, in the west wing, the two chambers of the legislature meet when in session while the North Dakota Supreme Court meets in the east wing. The 18th floor of the Capitol is an observation deck