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, Florida
As of the census of 2000, there were 1,028 people, 495 households, and 283 families residing in the CDP. The population density was 2,568.5 people per square mile (992.3/km²). There were 622 housing units at an average density of 1,554.1/sq mi (600.4/km²). The racial makeup of the CDP was 97.96% White, 0.49% African American, 0.10% Native American, 0.39% Asian, 0.10% Pacific Islander, 0.29% from other races, and 0.68% from two or more races. Hispanic or Latino of any race were 1.75% of the population.