Burleigh County, North Dakota were below the poverty line, including 11.6% of those under age 18 and 11.0% of those age 65 or over. 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
Interstate 29 in North Dakota Interstate 29 in North Dakota Interstate 29 (I-29) in the U.S. state of North Dakota runs from the state's southern border with South Dakota near Hankinson to the Canadian border just north of Pembina. The highway runs concurrently twice with U.S. Route 81 (US 81). The first such overlap begins in Watertown, South Dakota, across the state line to Manvel. The other is from exit 203 to the Canadian border. The highway runs somewhat parallel to the Minnesota border to the east and passes through two major cities, Fargo and Grand Forks. I-29 enters North Dakota, with a speed limit