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.
Rio Branco, Acre
The population of the municipality in 2009 was estimated at 305,954 inhabitants by the Brazilian Institute of Geography and Statistics (IBGE). It is the largest city in the state and one of Brazil's most populous. The population density of 33.17 inhabitants per square kilometer. According to the 2000 census, 51% of the population are male and 48.2% female; 92.73% of the population lives in urban areas and 7.22% live in rural areas. According to the Atlas of Human Development in Brazil, the population of Rio Branco is 0.16% of the national population. According to the Superior Electoral Court, Rio Branco had 201,966 voters in 2008 .