According to the UN, inequality in cities around the world is increasing. Almost half of humanity lives in urban areas. In the developing world, 1 in 3 city dwellers live in urban slums. At the same time, some American cities are as unequal as African and Latin American cities. For example, New York was found to be the 9th most unequal in the world. The most unequal cities were in South Africa, Namibia and Latin America. Europe has generally more equal societies, but amongst the most unequal European countries is UK, which is one of the wealthiest.