Barcelona has a population of over 1.6 million people and is the economic center of its metropolitan region containing nearly 5 million inhabitants. The city has a diverse economy focused on services, commerce, tourism, and new industries like information and communications technology. Barcelona airport served over 47 million passengers in 2017, making it the 7th busiest in Europe, while the port handled over 3 million containers, demonstrating the city's importance as a transportation hub.