Bergen is a city in McHenry County, North Dakota, United States. The population was 10 at the 2020 census. It is part of the Minot Micropoli…Bergen is a city in McHenry County, North Dakota, United States. The population was 10 at the 2020 census. It is part of the Minot Micropolitan Statistical Area. Bergen was founded in 1905 and named after Bergen, Norway.