It is the community of Kibera, in Nairobi, the capital of Kenya, with about 2.5 million inhabitants. As in every favela, sanitation, housing and infrastructure conditions are extremely precarious. According to the definition of the United Nations (UN), favela is a set of dwellings in which people live without one or more of the following items: potable water, their own sanitary facilities, security and a sufficient number of rooms. Africa is the continent with the most people in these conditions: 61.7% of the inhabitants. In Sierra Leone, world record holder, 97% of the urban population lives in shacks. Rocinha, Brazil’s largest favela, is ten times smaller than Kibera, with around 250,000 residents.
Source: United Nations Human Settlements Program (Un-Habitat)