United Nations Population Information Network
A guide to population information on UN system web sites

The World Bank Group
   One of the world's largest sources of development assistance, working in more than 100 developing economies to help the poorest people and the poorest countries. (About Us) [French, Japanese, Russian, Spanish]
Data and Statistics
  Includes national statistics for countries and regions, data by topic, and data query. HPNStats includes demographic projections and comparative national tables covering population, labour force, education, reproductive health and mortality.
  Includes new research areas, key outputs, links to research project web sites, and topical links.