North Dakota

Settlement & growth (pre-1960)

Long before European arrival, North Dakota was home to several Native American nations, including the Mandan, Hidatsa, and Arikara, who built earth-lodge villages along the Missouri River near what is now Bismarck and Mandan. The Lakota Sioux dominated the western plains after the 18th century, while the Ojibwe (Chippewa) held the northeastern woodlands. The first European presence came with French fur traders in the 1730s, followed by a brief period under Spanish and then British control, but no permanent European settlement occurred until the U.S. acquired the region via the Louisiana Purchase in 1803. The Lewis and Clark expedition wintered near present-day Washburn in 1804-05, establishing Fort Mandan.

Large-scale American settlement began in earnest after the Homestead Act of 1862 and the arrival of the Northern Pacific Railway in the 1870s. The federal government forcibly removed most Native tribes onto reservations—today, the Standing Rock, Turtle Mountain, Spirit Lake, Fort Berthold, and Sisseton-Wahpeton reservations are home to the state’s Native population, which remains a significant cultural and political force. The first major wave of European immigrants came from Norway and Germany between 1870 and 1910, drawn by cheap land and the promise of wheat farming. Norwegians concentrated in the Red River Valley around Fargo and Grand Forks, while Germans from Russia—ethnic Germans who had lived in the Volga region—settled in the south-central counties near Wishek and Linton, bringing a distinct dialect and religious conservatism. A smaller wave of Icelandic immigrants founded the community of Mountain in Pembina County. By 1915, the state’s population had surged past 600,000, driven almost entirely by homesteading.

The Dust Bowl and Great Depression of the 1930s hit North Dakota hard, causing a net out-migration that lasted into the 1950s. Many rural counties lost a third or more of their population as farms consolidated and young people left for cities or the West Coast. The post-World War II era saw modest growth in the larger towns—Fargo, Bismarck, and Minot—as the state’s agricultural economy mechanized and the Air Force bases at Minot and Grand Forks brought in military families. By 1960, the population had stabilized around 632,000, with a demographic profile that was nearly 98% white and heavily Lutheran and Catholic.

Modern era (post-1965)

The 1965 Hart-Cellar Act had a minimal direct impact on North Dakota, as the state’s cold climate and lack of large urban job markets attracted very few of the new immigrant streams that transformed California, Texas, or the Northeast. The foreign-born population today is just 2.6%, the lowest of any state, and the largest immigrant groups are Canadian, Filipino, and Mexican, with small enclaves in Fargo and Bismarck. The most significant demographic shift since 1965 has been internal: the oil boom in the Bakken shale formation, which began in earnest around 2008, drew tens of thousands of workers from across the U.S. to the western counties around Williston, Dickinson, and Watford City. This influx was overwhelmingly domestic—white men from Texas, Oklahoma, and the Rust Belt—and temporarily boosted the state’s population by over 10% before the 2014 oil price crash caused a partial exodus.

The Hispanic population has grown from negligible to 4.5%, driven largely by Mexican and Central American workers in agriculture, meatpacking, and oilfield support services, with visible communities in Fargo and West Fargo. The Black population (3.2%) is concentrated in the larger cities, particularly Fargo, where it has grown through both domestic migration and a small number of African refugees resettled by Lutheran Social Services. The East/Southeast Asian population (1.1%) includes a notable community of Vietnamese and Filipino families in the Grand Forks area, many connected to the university and the Air Force base. The Indian-subcontinent population (0.5%) is tiny but growing, primarily professionals in healthcare and technology in Fargo and Bismarck. Suburbanization has been limited—Fargo’s growth has spilled into West Fargo and Horace, but the state remains dominated by small towns and vast stretches of farmland. The Native American population, at roughly 5% of the total, is concentrated on reservations and in border towns like Belcourt and Fort Yates, and has seen modest growth through higher birth rates.