Rio de Janeiro is one of the states of Brazil, on the southeastern coast. Its capital is the city of Rio de Janeiro, which was the colony's capital from 1764 (the first being Salvador da Bahia), and the nation's capital from 1822 to 1960.
... the population is spread out with 17.4% under the age of 18, 3.5% from 18 to 24, 22.3% from 25 to 44, 28.7% from 45 to 64, and 28.1% who are 65 years of age or older. ...