Rio de Janeiro (English pronunciation: /riːoʊ deɪ ʒəˈnɛəroʊ/ or /ˈriːoʊ deɪ dʒəˈnɛəroʊ/; local Portuguese pronunciation: ˈʁi.u dʒi ʒaˈnejɾu, River of January), commonly referred to simply as Rio, is the capital city of the State of Rio de Janeiro, the second largest city of Brazil, and the third largest metropolitan area and agglomeration in South America, boasting approximately 6.3 million people within the city proper, making it the 6th largest in the Americas, and 26th in the world.