The figures in this interactive feature refer to the total number (or cumulative “stocks”) of migrants living around the world as of 2010 rather than to the annual rate of migration (or current “flows”). Since migrants have both an origin and a destination, international migrants can be viewed from two directions – as an emigrant (leaving an origin country) or as an immigrant (entering a destination country).
The interactive map focuses on the top origin and destination countries for each religious group. In some cases, however, migration between particular countries is not shown because of low confidence in the underlying data.
Large numbers are rounded to the nearest 10,000. Estimates between 1,000 and 9,999 are shown as < 10,000. Estimates between 0 and 999 are shown as < 1,000. All percentages are rounded to the nearest whole number and may not add to 100%. For a more detailed explanation of estimates, including data reliability tests, see the report methodology (Appendix B). A complete list of the data sources used for each country is provided in Appendix C (PDF).
According to the United Nations Population Division, an international migrant is someone who has been living for one year or longer in a country other than the one in which he or she was born. This means that many foreign workers and international students are counted as migrants. Additionally, the U.N. considers refugees and, in some cases, their descendants (such as Palestinians born in refugee camps) to be international migrants. For the purposes of this interactive feature, estimates of the number of unauthorized or illegal immigrants living in various countries also are included in the total counts. On the other hand, tourists, foreign-aid workers, temporary workers employed abroad for less than a year and overseas military personnel typically are not counted as migrants.
For a complete analysis, read the full report.