Rio de Janeiro
Rio has more people living in slums than any other city in Brazil, according to the 2010 Census. More than 1,500,000 people live in its 763 favelas, 22% of Rio's total population. São Paulo, the largest city in Brazil, has more favelas (1,020) in sheer numbers, but proportionally has fewer people living in favelas than Rio.
Rio de Janeiro
Compared to other cities, Rio de Janeiro's economy is the 2nd largest in Brazil, behind São Paulo, and the 30th largest in the world with a GDP of R$ 201,9 billion in 2010. The per capita income for the city was R$22,903 in 2007 (around ). Largely because of the strength of Brazil's currency at the time, Mercer's city rankings of cost of living for expatriate employees, reported that Rio de Janeiro ranked 12th among the most expensive cities in the world in 2011, up from the 29th position in 2010, just behind São Paulo (ranked 10th), and ahead of London, Paris, Milan, and New York City. Rio also had the most expensive hotel rates in Brazil, and the daily rate of its five star hotels were the second most expensive in the world after only New York City.