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.
Maré, Rio de Janeiro
Maré is a neighborhood and "favela" (low-income informal neighborhood) in the North Zone of Rio de Janeiro, Brazil. It is a grouping of several favelas, suburbs with houses, and housing complexes. With approximately 130,000 residents (2006 estimate), it is one of the largest slum complexes in Rio de Janeiro, a consequence of the low indicators of social development that characterize the region.