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

Co-ordinate to the United Nations, the United States has the highest number of immigrants (strange-built-in individuals), with 48 million in 2015, v times more in Saudi Arabia (11 one thousand thousand) and six times more than than in Canada (7.6 million) (figure below). Nevertheless, in proportion to their population size, these ii countries accept significantly more immigrants: 34% and 21%, respectively, versus 15% in the Usa.

15 countries with the most immigrants in 2019

Paradigm: Gilles Pison, based on Un information

Looking at the ratio of immigrants to the full population (figure beneath), countries with a loftier proportion of immigrants can be divided into five groups:

- The first grouping comprises countries that are sparsely populated but take abundant oil resources, where immigrants sometimes outnumber the native-built-in population. In 2015, the world's highest proportions of immigrants were found in this group: United Arab Emirates (87%), Kuwait (73%), Qatar (68%), Kingdom of saudi arabia, Bahrain, and Oman, where the proportion ranges from 34% to 51%.

- The second grouping consists of very small territories, microstates, often with special revenue enhancement rules: Macao (57%), Monaco (55%), and Singapore (46%).

- The third grouping is fabricated up of nations formerly designated as "new countries", which cover vast territories but are all the same sparsely populated: Commonwealth of australia (28%) and Canada (21%).

- The fourth group, which is like to the tertiary in terms of way of development, is that of Western industrial democracies, in which the proportion of immigrants generally ranges from 9% to 17%: Austria (17%), Sweden (16%), Us (15%), United Kingdom (13%), Kingdom of spain (xiii%), Frg (12%), France (12%), the Netherlands (12%), Kingdom of belgium (11%), and Italy (10%).

- The 5th group includes the so-called "countries of first asylum", which receive massive flows of refugees due to conflicts in a neighbouring country. For instance, at the end of 2015, more than than ane million Syrian and Iraqi refugees were living in Lebanon, representing the equivalent of 20% of its population, and around 400,000 refugees from Sudan were living in Chad (three% of its population).

Proportion of immigrants in selected countries in 2019

Image: Gilles Pison, based on Un data

Small countries accept higher proportions of immigrants

With 29% immigrants, Switzerland is ahead of the United States, while the proportion in Luxembourg is fifty-fifty higher (46%). Both the attractiveness and size of the state play a role. The smaller the state, the higher its probable proportion of strange-born residents. Conversely, the larger the land, the smaller this proportion is likely to be. In 2015, India had 0.4% of immigrants and Prc 0.07%.

However, if each Chinese province were an independent country – a dozen provinces have more than l million inhabitants, and iii of them (Guangdong, Shandong, and Henan) take about 100 meg – the proportion of immigrants would exist much higher, given that migration from province to province, which has increased in calibration over recent years, would be counted equally international and non internal migration. Conversely, if the European Union formed a single country, the share of immigrants would decrease considerably, since citizens of ane EU state living in another would no longer be counted. The relative scale of the two types of migration – internal and international – is thus strongly linked to the style the territory is divided into divide nations.

15 sending countries that have supplied highest number of migrants

Paradigm: Gilles Pison, based on United Nations information

The number of emigrants is difficult to measure

All immigrants (in-migrants) are also emigrants (out-migrants) from their home countries. Nevertheless the information bachelor for counting emigrants at the level of a particular state is oft of poorer quality than for the immigrants, even though, at the global level, they represent the aforementioned set of people. Countries are probably less concerned virtually counting their emigrants than their immigrants, given that the one-time, dissimilar the latter, are no longer residents and do not use government-funded public services or infrastructure.

Nonetheless, emigrants often contribute substantially to the economy of their abode countries by sending back money and in some cases, they nonetheless have the correct to vote, which is a practiced reason for sending countries to track their emigrant population more finer. The statistical sources are some other reason for the poor quality of data on emigrants. Migrant arrivals are amend recorded than departures, and the number of emigrants is ofttimes estimated based on immigrant statistics in the dissimilar host countries.

The number of emigrants varies considerably from one country to another. India headed the list in 2015, with near 16 million people built-in in the country merely living in another (see the figure beneath); Mexico comes in second with more than 12 million emigrants living mainly in the U.s.a..

Proportion of emigrants in selected countries in 2019

Image: Gilles Pison, based on United Nations data

Proportionally, Republic of bosnia and herzegovina holds a tape: there is ane Bosnian living abroad for two living in the country, which means that ane-third of the people born in Bosnia and herzegovina have emigrated (figure below). Albania is in a like state of affairs, as well as Cape verde, an insular country with few natural resources.

Some countries are both immigration and emigration countries. This is the case of the United Kingdom, which had viii.4 1000000 immigrants and iv.7 million emigrants in 2015. The United States has a considerable number of expatriates (2.nine million in 2015), simply this is 17 times less in comparison to the number of immigrants (48 million at the same date).

Until recently, some countries have been relatively airtight to migration, both in and outward. This is the instance for Nippon, which has few immigrants (simply one.7% of its population in 2015) and few emigrants (0.6%).

Immigrants: less than four% of the world population

Co-ordinate to the Un, in that location were 258 million immigrants in 2017, representing only a minor minority of the world population (three.four%); the vast bulk of people live in their country of nascence. The proportion of immigrants has only slightly increased over recent decades (thirty years ago, in 1990, it was 2.9%, and 55 years ago, in 1965, it was two.3%). It has probably inverse only slightly in 100 years.

Merely the distribution of immigrants is different than it was a century ago. One modify is, in the words of Alfred Sauvy, the "reversal of migratory flows" betwixt N and Southward, with a considerable share of international migrants now coming from Southern countries.

The four large groups of international migrants, migrant numbers in 2017

Image: Gilles Pison, based on Un data

Today, migrants can be divided into 3 groups of practically equal size (figure above): migrants born in the South who live in the N (89 million in 2017, co-ordinate to the Un); Due south-Southward migrants (97 one thousand thousand), who have migrated from one Southern country to another; and North-North migrants (57 one thousand thousand). The fourth group – those born in the Northward and who have migrated to the South – was ascendant a century ago but is numerically much smaller today (14 million). Despite their big scale, especially in Europe, migrant flows generated since 2015 past conflicts in the Middle East have not significantly changed the global picture of international migration.