The United States hosted, by far, the highest number of immigrants in the world in 2020. That year, there were over 50 million people born outside of the States residing in the country. Germany and Saudi Arabia followed behind at around 16 and 13 million, respectively. There are varying reasons for people to emigrate from their country of origin, from poverty and unemployment to war and persecution. American Migration People migrate to the United States for a variety of reasons, from job and educational opportunities to family reunification. Overall, in 2021, most people that became legal residents of the United States did so for family reunification purposes, totaling 385,396 people that year. An additional 193,338 people became legal residents through employment opportunities. In terms of naturalized citizenship, 113,269 people from Mexico became naturalized American citizens in 2021, followed by people from India, the Philippines, Cuba, and China. German Migration Behind the United States, Germany also has a significant migrant population. Migration to Germany increased during the mid-2010's, in light of the Syrian Civil War and refugee crisis, and during the 2020’s, in light of conflict in Afghanistan and Ukraine. Moreover, as German society continues to age, there are less workers in the labor market. In a low-migration scenario, Germany will have 37.2 million skilled workers by 2040, compared to 39.1 million by 2040 in a high-migration scenario. In both scenarios, this is still a decrease from 43.5 skilled workers in 2020.

With nearly 49,000 living in Denmark as of January 1, 2024, most immigrants were from Poland. The second and third largest groups of immigrants were from Ukraine and Romania, amounting to roughly 41,000 and 40,000 people, respectively. Tightening immigration policies Like many European countries, Denmark experienced a heightened influx of immigrants in 2015. In the wake of the refugee situation, however, the number of immigrants, notably asylum seekers, declined in part due to sharpened immigration policies. In 2015, over 21,000 refugees applied for asylum in Denmark, whereas applications fell below 5,000 in 2022. Residence permits Among the different types of residence permits, permits granted based on asylum were the least delivered type of permit. Only 1,400 people were granted asylum in Denmark in 2022. The highest number of asylum seekers came from Ukraine, even when excluding Ukrainians arriving via the temporary protection act. In 2022, Denmark registered around 2,000 applications from Ukrainians.

People born in Syria made up the largest group of Sweden's foreign-born population in 2023. Nearly 200,000 people born in Syria lived in Sweden as of 2023. Iraqi made up the second largest group of foreign-born citizens, followed by Sweden's neighboring country Finland. The total number of foreign-born citizens living in the Scandinavian country increased over the past 10 years.

Migration contributes to population growth

Sweden's positive net migration rate meant that it's population increased steadily since 2000. In 2022, over 100,000 people immigrated to Sweden, which was still significantly lower than the record year 2016.

Syrians fleeing civil war

The record number of refugees arriving in 2016 was driven by Syrians fleeing the Civil War in the country. Following the Arab spring and protests for democracy in 2011, fighting broke out between the Syrian national army and several armed factions. Several million people fled the country as a result, some of them seeking refuge in Sweden.

As of 2023, 27.3 percent of California's population were born in a country other than the United States. New Jersey, New York, Florida, and Nevada rounded out the top five states with the largest population of foreign born residents in that year. For the country as a whole, 14.3 percent of residents were foreign born.

This statistic displays the number of people from the twenty largest immigrant groups in the Netherlands as of 2023. At this time, Poles were the largest group of foreign-born residents in the Netherlands with approximately 186,800 people.

All of the inhabitants in the Holy See, the home of the leader of the Roman Catholic Church, were immigrants in 2020, meaning that they were born outside of the country. Perhaps more interesting are the Gulf States the United Arab Emirates, Qatar, and Kuwait, all with an immigrant population of over 70 percent of their total populations, underlining the high importance of migrant workers to these countries' economies. In terms of numbers, the United States had the highest number of immigrants in 2020. Migration to Gulf Cooperation Council states The United Arab Emirates, Qatar, and Kuwait, all members of the Gulf Cooperation Council (GCC), have a significant amount of migrant labor. The United Arab Emirates and Qatar both rank high in quality-of-life rankings for immigrants. A significant number of migrant workers in the GCC originate from Asia, with the most originating from Bangladesh. As of 2022, nearly 938.7 thousand Bangladeshi citizens expatriated to work in GCC nations. The American melting pot The United States is known for having high levels of diversity and migration. Migration to the United States experienced peaks from the periods of 1990-1999 as well as 1900-1909. Currently, Latin Americans are the largest migrant group in the United States, followed by migrants from Asia. Out of each state, California has some of the highest naturalization rates. In 2021, 171,863 people in California naturalized as U.S. citizens, followed by Florida, New York, Texas, and New Jersey.

In 2022, the largest foreign group of immigrants to the Netherlands came from Ukraine, with 99,700 immigrants. Polish, Dutch, Syrian and Turkish rounded out the top five foreign nationalities for immigrants to the Netherlands in that year.

In 2019 there were 272,436 immigrants from the United Kingdom living in New Zealand. The second largest migrant group in the country were Chinese immigrants, with a population of around 95 thousand people.

The majority of immigrants moving to Sweden in 2023 were Swedes returning to Sweden. Nearly 10,600 Swedes returned to their home country in 2023. The remaining top five countries of origin were India, Poland, Germany, and Syria. In total, 95,000 people immigrated to Sweden in 2023.

Syrians largest immigrant group

Of Sweden's foreign-born population, Syrians made up the largest group. Following the outbreak of the Syrian Civil War in 2011, many people left the country in search of a better life in Europe, some of which landed in Sweden. In 2022, Sweden hosted the world's 7th largest group of Syrian refugees.

Immigration drives population increase in Sweden

Over the past decade, Sweden has seen a positive migration rate, with more people immigrating to the country than people leaving. This is one of the main reasons why the country's population has been increasing steadily over recent years.

The largest number of immigrants in Germany were from Ukraine, as of 2023. The top three origin countries were rounded up by Romania and Turkey. Immigrants are defined as having left a country, which may be their home country, to permanently reside in another. Upon arriving, immigrants do not hold the citizenship of the country they move to. Immigration in the EU All three aforementioned countries are members of the European Union, which means their citizens have freedom of movement between EU member states. In practice, this means that citizens of any EU member country may relocate between them to live and work there. Unrestricted by visas or residence permits, the search for university courses, jobs, retirement options, and places to live seems to be defined by an enormous amount of choice. However, even in this freedom of movement scheme, immigration may be hampered by bureaucratic hurdles or financial challenges. Prosperity with a question mark While Germany continues to be an attractive destination for foreigners both in and outside the European Union, as well as asylum applicants, it remains to be seen how current events might influence these patterns, whether the number of immigrants arriving from certain countries will shift. Europe’s largest economy is suffering. Climbing inflation levels in the last few months, as well as remaining difficulties from the ongoing coronavirus (COVID-19) pandemic are affecting global economic development. Ultimately, future immigrants may face the fact of moving from one struggling economy to another.

This graph shows the distribution of nationalities among documented immigrants who arrived in the United States between 1820 and 1870. As we can see, over seven million people arrived in the US in this 50 year period, with the majority coming from Ireland, Germany and Britain. The largest groups, by far, were Irish and German, who together made up roughly two thirds of all immigrants to the US during this time. The reasons for this were because of the Irish Potato famine from 1845 to 1849, which resulted in the death or emigration of twenty to twenty five percent of the total Irish population, and a number of internal factors in Germany such as economic migration for farmers affected by industrialization, political/religious asylum, and in order to avoid conscription. One noteworthy exclusion from the information is of those transported to US as slaves, whose information was not recorded in this statistic (although the slave trade was abolished in 1808, the practice continued in the decades that followed).

As recorded by the source, Moroccans ranked as the foreign nationality with more residents in Spain in 2023, closely followed by Romanians. After years of losing its foreign population, Spain’s immigration figures started to pick up in 2015, with the number of people that moved to the Mediterranean country surpassing the number of foreigners that decided to leave.

A matter of balance The net migration rate of Spain changed its course mainly due to the great inflow of foreigners that move to reside in the Mediterranean country. Spain’s immigration flow slowed down after the 2008 financial crisis, albeit the number of foreigners that opted to change their residence saw a significant growth in the last years. In 2022, Colombians ranked first as the foreign nationality that most relocated to Spain, distantly followed by Moroccans and Ukranians.

Spain does not have the highest number of immigrants in Europe In recent years, the European Union confronted a rising number of refugees arriving from the Middle East. Migration figures show that Germany accommodated approximately 15 million foreign-born citizens, ranking it as the country that most hosted immigrants in Europe in 2022. By comparison, Spain’s foreign population stood slightly over seven million, positioning the Western Mediterranean country third on the European list of foreign-born population. Unfortunately, thousands of persons have died ore gone missing trying to reach Spanish territory, as more and more irregular migrants opt to use dangerous maritime routes to arrive at Southern Europe from Africa's coasts.

Migrants from the United Kingdom have long been Australia’s primary immigrant group and in 2023 there were roughly 960 thousand English-born people living in Australia. India and China held second and third place respectively with regard to Australia’s foreign-born population. The relative dominance of Asian countries in the list of top ten foreign-born residents of Australia represents a significant shift in Australia’s immigration patterns over the past few decades. Where European-born migrants had previously overshadowed other migrant groups, Australian migration figures are now showing greater migration numbers from neighboring countries in Asia and the Pacific. A history of migration Australia is often referred to as an ‘immigrant nation’, alongside the United States, Canada, and New Zealand. Before the Second World War, migrants to Australia were almost exclusively from the UK, however after 1945, Australia’s immigration policy was broadened to attract economic migrants and temporary skilled migrants. These policy changes saw and increase in immigrants particularly from Greece and Italy. Today, Australia maintains its status as an ‘’Immigrant nation’’, with almost 30 percent of the population born overseas and around 50 percent of the population having both that were born overseas. Australian visas The Australian immigration program has two main categories of visa, permanent and temporary. The permanent visa category offers three primary pathways: skilled, family and humanitarian. The skilled visa category is by far the most common, with more than a million permanent migrants living in Australia on this visa category at the last Australian census in 2021. Of the temporary visa categories, the higher education visa is the most popular, exceeding 180 thousand arrivals in 2023.

In 2022, the largest share of immigrants in Chile originated from Venezuela, with 32.8 percent of immigrants in the country being Venezuelans. The vast majority of foreigners in the South American country were from other Latin American nations, mainly Venezuela, Peru, and Colombia.

At mid-year 2020, Venezuela was the main country of origin of immigrants in Brazil, as there were about 248,000 Venezuelans in the South American country. Immigrants from Portugal were the second largest foreign community in Brazil.

As of 2024, Romanians were Italy's largest foreign population, with over one million Romanians living in Italy during the period considered. Albania and Morocco followed with 416,000 and 412,000 people, respectively. From a regional perspective, the Northern regions had the largest foreign population. Lombardy had some 1.1 million foreign residents, the largest in the country.

At the beginning of 2023, the largest group of foreign citizens living in Norway came from Poland. There were nearly 112,000 Poles living in Norway that year. Lithuanians and Swedes made up the second and third largest groups, with nearly 50,000 and nearly 37,000 inhabitants each. More than 600,000 foreign citizens lived in Norway that year.

Colombia ranked as the country of origin of the largest immigration group arriving into Spain in 2023, as revealed by the latest data. Over 170,000 people migrated from the South American country to Spain that year. The second largest group was comprised by Moroccans with around 122,000 newcomers. A matter of balance The net migration rate of Spain changed its course mainly due to the great inflow of foreigners that move to reside in the Mediterranean country. Spain’s immigration flow slowed down after the 2008 financial crisis, albeit the number of foreigners that opted to change their residence saw a significant growth in the last years. In 2023, Moroccans ranked first as the foreign nationality residing Spain, followed by people from Romania and the Colombians. Spain does not have the highest number of immigrants in Europe In recent years, the European Union confronted a rising number of refugees arriving from the Middle East and Africa. Migration figures show that Germany accommodated approximately 15 million foreign-born citizens, ranking it as the country that most hosted immigrants in Europe in 2023. By comparison, Spain’s foreign population stood over eight million, positioning the Western Mediterranean country third on the European list of foreign-born population. Unfortunately, thousands of persons have died or gone missing trying to reach Spanish territory, as more and more irregular migrants opt to use dangerous maritime routes to arrive at Southern Europe from Africa's coasts.

This statistic shows the top ten metropolitan areas in the United States with highest unauthorized immigrant populations in 2014. With over one million unauthorized people, New York-Newark-Jersey City, NY-NJ-PA had the highest illegal immigrant population in the United States in 2014.

Over the past 10 years, the number of people with an immigrant background living in Norway increased. Whereas nearly 1.1 million people with an immigrant background lived in Norway in 2014, this number had increased to nearly 1.5 million as of 2024. Of these, first generation immigrants was, by far, the largest group, counting 930,000 people. The second largest group was people born in Norway with one parent born abroad, followed by inhabitants born in Norway with two parents born abroad. Immigration to the Nordics Norway is not the only Nordic country with increasing immigration. Immigration has increased in each Nordic country from 2000 and onwards, with Sweden leading immigration until being taken over by Denmark in 2022. Sweden has taken in a comparatively high number of refugees, but most immigrants to the Nordics are from other European countries, such as in Finland. Population challenges in the Nordics Over time, the fertility rate has declined in each Nordic country, and as of 2022, Iceland had the highest fertility rate in the region with only 1.6 children born per woman. Moreover, those aged 70 and older are increasingly making up larger portions of Nordic societies. These factors combined can create challenges as there are less workers available, making immigration an important factor in the Nordic labor markets.