Aarhus, is the second-largest city in Denmark. The principal port of Denmark, Aarhus is on the east side of the peninsula of Jutland in the geographical center of Denmark. Aarhus is the seat of the council of Aarhus municipality with 310,956 inhabitants and 242,914 in the inner urban area, and about 800,000 inhabitants within 1/2 hour transport (Greater Aarhus). The city claims the unofficial title "Capital of Jutland". Aarhus is the main and biggest city in the East Jutland metropolitan area. which is a co-operation in the eastern Jutland with 17 municipalities. With more than 1.2 million people living in the area it represents approximately 23% of the population of Denmark and is the second largest metropolitan area after the Copenhagen metropolitan area.