Chicago, IL is the third most populated urban center in the United States, just after L.A. and New York City. Having 2.6 million inhabitants, it is the most populated city in both the U.S. state of Illinois and the Midwest. Its metropolitan area, at times called Chicagoland, is home to 9.3 million individuals and it is the 3rd-largest in the United States. Chicago is considered the mainstay of Cook County.
Nowadays, the city is undoubtedly an international center for commerce, technology and industry Moreover it offers the greatest amount of highways and railroad freight coming into its area. In 2009, Chicago deemed to be an alpha international city by the GWC Research Network, and ranks sixth in the world in the 2011 Global Cities Index. As of 2010, the city had the second greatest gross metro product in the U.S., at a total of US$575 billion.