Eagan is a city in Dakota County, Minnesota. It is south of Saint Paul and lies on the south bank of the Minnesota River, upstream from the con…Eagan is a city in Dakota County, Minnesota. It is south of Saint Paul and lies on the south bank of the Minnesota River, upstream from the confluence with the Mississippi River. Eagan and the other nearby suburbs form the southern section of the Minneapolis–Saint Paul area. Eagan's population was 68,855 at the 2020 census. The city was home to the headquarters of Northwest Airlines.