Definition: A metropolitan area or metro is a region consisting of a densely populated urban core and its less-populated surrounding territories under the same administrative division, sharing industry, infrastructure and housing. The historical ranking includes metro areas such as Tokyo, Seoul, Mexico City, New York, Mumbai, Jakarta, Sao Paulo, Delhi, Osaka, Shanghai, Manila, Chongqing , Los Angeles, Kolkata, Moscow, Cairo, Buenos Aires, London, Beijing and Paris.
Source of information:
Eurostat
U.S. Census Bureau, Census of India
United Nations, Department of Economic and Social Affairs, Population Division (2018). World Urbanization Prospects: The 2018 Revision, Online Edition.
Organisation for Economic Co-operation and Development.
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