Dakota County is the third-most populous county in the U.S. state of Minnesota, located in the east central portion of the state. As of the 2020 census, the population was 439,882. The population of Dakota County was estimated to be 453,156 in 2024. The county seat is Hastings. Dakota County is named for the Dakota Sioux tribal bands who inhabited the area. The name is recorded as "Dahkotah" in the United States Census records until 1851. Dakota County is included in the Minneapolis–St. From Wikipedia