Ellendale is a city in Dickey County, North Dakota, United States. It is the capital city of Dickey County. The population was 1,125 at the 2020 census. Ellendale was founded in 1882. Ellendale is the home of Trinity Bible College, located on the former campus of the North Dakota State Normal and Industrial School and the Ellendale Opera House currently under renovation.

Dickey County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 4,999. Its county seat is Ellendale.