The International Organization for Migration (IOM) is present in more than 100 countries and has over 590 Country Offices and Sub-offices worldwide. As the leading inter-governmental organization promoting humane and orderly migration since 1951, IOM plays a key role to support the achievement of the 2030 Agenda through different areas of intervention that connect both humanitarian assistance and sustainable development.


Over 82 million international migrants lived in Europe in 2019, an increase of nearly 10 per cent since 2015 when 75 million international migrants resided in the region. A little over half of these (42 million) were born in Europe but were living elsewhere in the region; while this number has only moderately increased since 2015, it was much lower in 1990, at around 28 million. From 2015 to 2019, the population of non-European migrants in Europe increased from a little over 35 million to around 38 million.

The Region: EEA, UK and Switzerland

The IOM Regional Office in Brussels (RO Brussels) covers the EEA, UK and Switzerland region RO Brussels coordinates and supports our 28 IOM Country Offices in the region, covering work 30 countries, with 2,853 IOM staff representing 103 nationalities (as of December 2021).

Explore where we work

Note: The boundaries and names shown and the designations used on this map do not imply official endorsement or acceptance by the International Organization for Migration.