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.
Economic history of Brazil
A socioeconomic transformation took place rapidly after World War II. In the 1940s, only 31.3% of Brazil's 41.2 million inhabitants resided in towns and cities; by 1991, of the country's 146.9 million inhabitants 75.5% lived in cities, and Brazil had two of the world's largest metropolitan centers: São Paulo and Rio de Janeiro. The share of the primary sector in the gross national product declined from 28% in 1947 to 11% in 1992. In the same 1947–92 period, the contribution of industry to GNP increased from less than 20–39%. The industrial sector produces a wide range of products for the domestic market and for export, including consumer goods, intermediate goods, and capital goods.