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.
April 2010 Rio de Janeiro floods and mudslides
The April 2010 Rio de Janeiro floods and mudslides was an extreme weather event that affected the State of Rio de Janeiro in Brazil in the first days of April 2010. At least 212 people died, 161 people have been injured (including several rescuers), while at least 15,000 people have been made homeless. A further 10,000 homes are thought to be at risk from mudslides, most of them in the "favelas", the shanty towns built on the hillsides above downtowns. Damage from the flooding has been estimated at 23.76 billion reais (US$13.3bn, €9.9bn), about 8% of the gross domestic product (GDP) of Rio de Janeiro State.