Jamestown is a city in Stutsman County, North Dakota in the United States. It is the county seat of Stutsman County. The population was 15,427 at the 2010 census, making it the eighth largest city in North Dakota. Jamestown was founded in 1872.
Jamestown is located at 46°54′20″N 98°42′11″W / 46.90556°N 98.70306°W / 46.90556; -98.70306 (46.905641, -98.702994) at the confluence of the James River and Pipestem Creek. According to the United States Census Bureau, the city has a total area of 12.5 square miles (32.4 km²). 12.4 square miles (32.2 km²) of it is land and 0.1 square miles (0.1 km²) of it (0.40%) is water. Jamestown Regional Airport serves the city providing scheduled flights to all four major North Dakotan metropolitan areas, as well as chartered flights out of state.
In 1872, the U.S. Army established Fort Seward, a small post garrisoned by three companies (about 120 men) of the Twentieth Infantry Regiment, on a bluff overlooking the confluence of the James River and Pipestem Creek. The fort guarded the crossing of the James by the Northern Pacific Railroad. The fort only lasted five years, being decommissioned in 1877 - but the railroad remained, establishing a repair yard that was among the city's main industries until the 1960s. The city was founded in 1872 and incorporated in 1883.