Belfield is a city in Stark County, North Dakota, United States and only 15 minutes from Theodore Roosevelt National Park. The population was 996 at the 2020 census. Belfield was founded in 1883, and has seen many boom and busts in this oil-rich part of North Dakota. It is part of the Dickinson Micropolitan Statistical Area.

Stark County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 33,646, making it the 7th most populous county in North Dakota. Its county seat is Dickinson.