General Article Which countries have the most immigrants?

Topic Selected: Expat or Immigrant? Book Volume: 359
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This article is published in collaboration with The Conversation.

By Gilles Pison, Professor at the National Museum of Natural History and Associate Researcher at INED, National Museum of Natural History (MNHN) - Sorbonne Universités

The proportion of immigrants varies considerably from one country to another. In some, it exceeds half the population, while in others it is below 0.1%. Which countries have the most immigrants? Where do they come from? How are they distributed across the world? We provide here an overview of the number and share of immigrants in different countries around the world.

According to the United Nations, the United States has the highest number of immigrants (foreign-born individuals), with 48 million in 2015, five times more than in Saudi Arabia (11 million) and six times more than in Canada (7.6 million) (figure below). However, in proportion to their population size, these two countries have significantly more immigrants: 34% and 21%, respectively, versus...

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