About 175 million people currently reside in a country other than where they were born; the equivalent of about 3 percent of the world's population. Since 1975, the number of migrants in the world has more than doubled, with 60 percent now living in the more developed regions. It is estimated that 56 million migrants live in Europe, 50 million in Asia and 41 million in Northern America. This is according to a new feature highlight in the Development Gateway Population and Reproductive Health (POP/RH) Portal which contains links to publications and web sites on migration issues.