World Urbanization Prospects: The 2011 Revision
Africa and Asia together will account for 86 per cent of all growth in the world’s urban population over the next four decades, adding that this unprecedented increase will pose new challenges in terms of jobs, housing and infrastructure. Africa’s urban population will increase from 414 million to over 1.2 billion by 2050 while that of Asia will soar from 1.9 billion to 3.3 billion, according to the 2011 Revision of the World Urbanization Prospects, produced by the UN Population Division of the Department of Economic and Social Affairs (DESA).
The largest increases in urban population are expected in the following countries: India, China, Nigeria, the United States and Indonesia. Over the next four decades, India will add another 497 million to its urban population, China – 341 million, Nigeria – 200 million, the US – 103 million, and Indonesia – 92 million.
The projected increase in urban populations in India and Nigeria in the next 40 years will be higher than that of the past four decades, a news release on the report pointed out.