Duluth, Minnesota
Duluth is the county seat of Saint Louis County. It is the fourth largest city in Minnesota. At the 2010 census, Duluth had 86,265 people. Duluth is the second largest city on Lake Superior after Thunder Bay, Ontario. It has the largest metropolitan area on Lake Superior.  The Duluth MSA had 279,771 people in 2010. Duluth forms a metropolitan area with Superior, Wisconsin called the "Twin Ports".