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.
Três Rios
Três Rios (, ) is a municipality located in the Brazilian state of Rio de Janeiro. As of 2015 its population was 79,264 and its area is around 326 km².
As of 2017, the mayor of Três Rios is Josimar Sales Maia.