Demographics of Rio de Janeiro
Rio de Janeiro City is home to more than 6 million people, accounting for about 35% of the population of Rio de Janeiro State. Portuguese remains the most widely spoken language and Rio de Janeiro is the second city in the Portuguese speaking world.
Americas
The Americas are home to over a billion inhabitants, two-thirds of which reside in the United States, Brazil, or Mexico. It is home to eight megacities (metropolitan areas with ten million inhabitants or more): New York City (23.9 million), Mexico City (21.2 million), São Paulo (21.2 million), Los Angeles (18.8 million), Buenos Aires (13.8 million), Rio de Janeiro (13.0 million), Bogotá (10.4 million), and Lima (10.1 million).