Data and research: Data sources

Data and research

Data sources

This database contains empirical data on the number (“stock”) of international migrants by country of birth and citizenship, sex and age as enumerated by population censuses, population registers, nationally representative surveys and other official statistical sources from more than 200 countries and territories in the world.

This database provides sex-disaggregated international migrant stock estimates for all countries, regions, major areas, and development groups in the world for 1990, 2000 and 2010.

This database provides sex- and age-disaggregated international migrant stock estimates for all countries, regions, major areas, and development groups in the world for 1990, 2000 and 2010.

This database provides annual data on the inflow, and where available on the outflow and the net flow of international migrants for 43 mostly developed countries. The data generally cover the period 1980 to 2010.

This database contains data form the 2010 Revision of the World Population Prospects, the official United Nations population estimates and projections prepared for all countries, regions, major areas, and development groups in the world. The database covers the period 1950-2100 and presents information on total population, population structures and mortality, fertility and migration.

This database provides an overview of population policies and dynamics for each of the United Nations Member and non-member States for which data are available at mid-decade for the 1970s, 1980s, 1990s and for 2009. Among many other topics, the database also contains information on Government views and policies on international migration.

This database lists questions on international migration asked in national population censuses by countries between 1995 and 2004. The database covers questions addressing country of birth, country of citizenship and year/period of arrival.



This database contains population census datasets (1995-present), including information on the migrant stock. The information listed refers to: native and foreign-born population by age and sex; foreign-born population by country/area of birth, age and sex; population by citizenship status, age and sex; foreign population (non-citizens) by continent/country of citizenship, age and sex, and economically active foreign-born population by occupation, age and sex.

This database was developed to make statistical information on international labour migration widely available. Data for European countries is based on the common questionnaire used by Statistical Office of the European Communities (EUROSTAT), United Nations Statistical Division (UNSD), ILO and the Council of Europe (COE). For other member states, especially countries of origin, the ILO obtains information periodically through the use of a questionnaire survey since 1998. From 1 January 2008, the ILM database has been integrated with the ILO Database on Labour Statistics (LABORSTA) operated by the ILO Bureau of Statistics.

This database provides data and trends on the population of concern to UNHCR: refugees, asylum-seekers, returned refugees, internally displaced persons (IDPs) protected/assisted by UNHCR, returned IDPs, stateless persons, and others of concern to UNHCR, in more than 180 countries.

This site provides various kinds of data on migration and remittances, including annual remittances data, monthly remittance flows to selected countries, and household survey data on migration and remittances.

This site includes statistics on the stocks and flows of immigrants as well as the labour market outcomes of immigrants in OECD countries.

This database displays UNDESA Population Division’s estimates of the international migrant stock at mid-year by sex and major area, region, country or area, 1990-2010.

Migratory is an online inventory of institutions and other information sources on migration in Europe, Central Asia, and North America. The information on each institution or source includes location, website, contact details, short summary of the activities, and category of the institution.

This database on migration law draws together relevant norms and instruments regulating migration at the international, regional and national levels.