International Student Numbers: Who Studies Where, and How the Picture Is Changing
Studying abroad has grown from a privilege of a few hundred thousand students into a global movement of several million. It is also big business for host countries and a political issue in several of them. This article sets out what the official data say, where they come from, and the policy changes that are reshaping the flows in the mid-2020s.
Where the numbers come from
Three sources dominate. The UNESCO Institute for Statistics (UIS) collects data from national authorities and publishes the global count of "internationally mobile students": students who have crossed a border to study. The OECD's annual Education at a Glance reports comparable data for its member and partner countries. In the United States, the Institute of International Education (IIE) publishes the Open Doors report each November, with support from the State Department. National agencies, such as the UK's Higher Education Statistics Agency, publish their own figures. Definitions differ, so numbers from different sources should not be mixed without care.
The global picture
According to UIS data, the number of internationally mobile tertiary students rose from about two million in 2000 to more than six million in the early 2020s. Growth slowed sharply during the COVID-19 pandemic in 2020 and 2021 and resumed afterwards. The main destinations are English-speaking countries, led by the United States, the United Kingdom, Australia and Canada, followed by countries such as Germany and France. The largest sending countries are China and India, and in many low-income countries a relatively high share of all tertiary students study abroad, a pattern discussed in our article on brain drain and brain circulation.
The United States: Open Doors 2024
| Indicator (2023/24 academic year) | Figure |
|---|---|
| International students in the US (including OPT) | 1,126,690, an all-time high |
| Students from India | 331,602 (largest group) |
| Students from China | 277,398 |
| International students on Optional Practical Training | 242,782 |
Open Doors also reports that 280,716 US students received academic credit for study abroad in 2022/23. The next edition, Open Doors 2025, counted about 1.2 million international students in 2024/25, with India (363,019) further ahead of China (265,919), while new international enrolments fell by 7%. Its fall 2025 snapshot, based on more than 825 institutions, found new international enrolments down 17%, with most institutions citing visa concerns. Developments in 2025, including tighter visa procedures, travel restrictions on nationals of some countries and pressure on several universities, led many institutions and associations to report concern about new enrolments; NAFSA and IIE published analyses of the effects.
New limits in other destinations
- Canada announced in January 2024 a two-year cap on new study permit applications, expecting about 35% fewer approved permits in 2024 than in 2023, and tightened post-graduation work permit rules. Further reductions were set for 2025.
- Australia raised student visa fees and financial requirements in 2024 and set a national planning level for new international student commencements, 270,000 for 2025 and 295,000 for 2026, applied through visa processing priorities rather than as a hard cap.
- The United Kingdom stopped most taught master's students from bringing dependants from January 2024, and legislated to shorten the Graduate route from two years to 18 months for applications made from 1 January 2027.
These measures were mostly driven by domestic debates on housing, migration levels and the quality of some providers. Together with US changes, they are pushing some students toward other destinations, including countries in continental Europe and Asia, and toward study in their own region.
Why the numbers matter
International students bring tuition revenue and spending to host countries; NAFSA, the US association of international educators, estimates their economic contribution each year. For sending countries, outbound mobility can be a channel for skills, research links and diaspora networks, or a loss of talent, depending on whether graduates return or stay connected. For universities in developing countries, the trend has also encouraged partnerships that bring foreign degrees to students at home, such as branch campuses and joint degrees, which are counted differently from mobility.
Reading the data carefully
Three common pitfalls
- Different definitions. "International" may mean foreign citizenship, foreign residence or prior education abroad, depending on the source.
- Stocks and flows. Total enrolment (all students present) differs from new enrolments (those starting this year), which react faster to policy.
- Timing. Global UIS and OECD data usually lag by two years or more; national snapshots are more recent but less comparable.
Beyond mobility: transnational education
A growing number of students earn a foreign degree without leaving home, through branch campuses, joint and double degrees, franchised programmes and online study. These students are counted as transnational education rather than as internationally mobile students. The UK, for example, publishes annual statistics showing that hundreds of thousands of students study for UK higher education qualifications entirely outside the UK. For students in developing countries, these routes can cost far less than moving abroad, though quality and recognition vary and need checking (see quality assurance). UNESCO data also show that many students choose destinations within their own region, a trend that the 2024–2025 restrictions in English-speaking countries may reinforce.
Sources
- UNESCO Institute for Statistics: uis.unesco.org.
- OECD, Education at a Glance.
- Institute of International Education, Open Doors (2024 report, 2023/24 data).
- NAFSA: Association of International Educators: nafsa.org.
- IRCC, study permit cap announcements; Australian Department of Education, international education; UK Home Office, student visa policy.
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