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, Wisconsin
As of the census of 2000, there were 938 people, 379 households, and 258 families residing in the village. The population density was 751.4 people per square mile (289.7/km²). There were 401 housing units at an average density of 321.2 per square mile (123.9/km²). The racial makeup of the village was 98.08% White, 0.11% African American, 0.21% Native American, 0.75% from other races, and 0.85% from two or more races. Hispanic or Latino of any race were 1.71% of the population.