Global Migration Movements Surged to 35 Million Annually by 2023

Surge in Global Migration

Global migration movements have experienced a significant increase over the last two decades. According to research published in Nature, annual global migration rose from 13 million people in 2000 to approximately 35 million by 2023.

The study notes that this upward trend is not merely a byproduct of overall population growth. Data indicates that per-capita migration saw a steady increase during the same period, rising from 0.2% in 2000 to 0.45% in 2023.

Periods of Decline and Extreme Events

While the general trajectory has been upward since the turn of the millennium, researchers identified two specific periods of sustained decrease in total global migration. The first occurred during the Great Recession between 2008 and 2009, and the second took place during the COVID-19 pandemic in 2020.

In terms of historical anomalies, the research registered the 1994 movement of people from Rwanda as the largest single-year event.

Regional Demographic Shifts and Pressures

Specific regions are experiencing distinct demographic shifts driven by migration. In Northern Ireland, international migration levels currently remain below the peaks seen in the late 2000s, but the origins of new arrivals have shifted since Brexit. There are now fewer arrivals from the European Union, with a majority of new migrants coming from South Asia and an increasing number arriving from Africa.

In Switzerland, population growth has been among the fastest in Europe. The country's population grew from 7.3 million in 2002—following the easing of restrictions on cross-border work and living between Switzerland and the EU—to more than 9 million by 2025, according to Switzerland's Federal Statistics Office. This rapid growth has led to a proposed vote on a population cap of 10 million, with supporters arguing that the increase places unsustainable pressure on public services, transport networks, and housing.

Displacement and Humanitarian Crisis

Parallel to voluntary migration, forced displacement remains a critical global issue. The United Nations reports that nearly 118 million people were displaced by persecution and conflict last year. Of these, 68.7 million are internally displaced people, with the ongoing war in Sudan cited as the cause of the largest displacement.

High Commissioner for Refugees Barham Salih stated that while humanitarian assistance has saved lives, it "was never intended to sustain generations of people indefinitely". Data shows that seven out of 10 refugees have lived in exile for five years or more. The agency has set a goal to reduce the number of refugees in protracted displacement who depend on humanitarian assistance by half by the year 2035.