World Urbanization Prospects: The 2011 Revision: Highlights
http://esa.un.org/unpd/wup/pdf/WUP2011_Highlights.pdf
Presents the official United Nations estimates and projections of urban and rural populations for major areas, regions, and countries of the world and of all urban areas with 750,000 inhabitants or more in 2011. Presents trends of urban and rural world populations for 2011 to 2050. From the Department of Economic and Social Affairs of the United Nations