Rio de Janeiro, also known simply as Rio, is the capital of the state of Rio de Janeiro. It is the second-most-populous city in Brazil after São Paulo with a population of 13 million people following 2025, and the sixth-most-populous city in the Americas.
Rio de Janeiro, also known simply as Rio, is the capital of the state of Rio de Janeiro. It is the second-most-populous city in Brazil after São Paulo with a population of 13 million people following 2025, and the sixth-most-populous city in the Americas.