Devils Lake is a city in and the county seat of Ramsey County, North Dakota, United States. The population was 7,192 as of the 2020 census and was estimated at 7,333 in 2025. It is named after the nearby lake called Devils Lake. The first house built by a Euro-American settler was in 1882. It was surveyed in 1883 and named Creelsburg and later Creel City, after the surveyor, Heber M. Creel. In 1884 it was renamed Devils Lake.