Manning is a census-designated place in Dunn County, North Dakota, United States. It is the county seat of Dunn County. Manning was founded in 1908 to serve as the seat of Dunn County, itself organized that year. Its population was not reported in the 2000 census, but was included in the 2020 census, where a population of 47 was given, and was estimated to be 79 in 2023 with this population estimate being the only info available.