The Lisbon Metropolitan Area is a metropolitan area in Portugal centered on Lisbon, the capital and largest city of the country. The metropolitan area, covering 18 municipalities is the largest urban area in the country and the 10th largest in the European Union, with a population in 2015 of 2,812,678 in an area of 3,015.24 km².The Lisbon Metropolitan Area has the largest GDP of any metropolitan area in Portugal.