Fargo is the most populous city in the U.S. state of North Dakota. The population was 125,990 at the 2020 census and estimated at 136,285 in 2024. Fargo and its twin city of Moorhead, Minnesota, form the core of the Fargo–Moorhead metropolitan area, which had a population of 248,591 in 2020. It is the county seat of Cass County.
Fargo was founded in 1871 on the Red River of the North floodplain. It is a cultural, retail, health care, educational, and industrial center for southeastern North Dakota and northwestern Minnesota. North Dakota State University is in the city.