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.
Baixada Fluminense
Its municipalities are part of the Rio de Janeiro Metropolitan Region. The Baixada Fluminense region’s population is about three million, making it the second most populous region in the state, following only the city of Rio de Janeiro.