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…

The Demographic Yearbook 2009-2010 is the sixty-first in a series published by the United Nations since 1948. It contains tables including a world summary of selected demographic statistics, statistics on the size, distribution and trends in national populations, fertility, foetal mortality, infant and maternal mortality, general mortality, nuptiality and divorce. Data are shown by urban/rural residence, as available. In addition, the volume provides Technical Notes, a synoptic table, a historical index and a listing of the issues of the Demographic Yearbook published to date.