Ashley is a city in and the county seat of McIntosh County, North Dakota, United States. The population was 613 at the 2020 census. Ashley w…Ashley is a city in and the county seat of McIntosh County, North Dakota, United States. The population was 613 at the 2020 census. Ashley was laid out in 1888 when the Minneapolis, St. Paul and Sault Ste. Marie Railroad was extended to that point. The city was named for Ashley E. Morrow, a railroad man. A post office has been in operation at Ashley since 1888. The McIntosh County Courthouse was built in 1919.