Student population data shows who studies, at what level, and why participation varies. Across regions and systems, enrollment is shaped by school access, conflict and displacement, and the lasting effects of COVID-era recovery. Attendance and learning can also diverge with learning poverty, student absence, and day-to-day wellbeing factors like hunger and language needs. On the page, you’ll connect these conditions to outcomes and international mobility patterns.
Key Takeaways
- In Eastern and South-Eastern Europe, Central Asia, 6% of children were out of school in 2021 (UNESCO/UNICEF/World Bank estimates), quantifying regional enrollment shortfall
- 48% of upper secondary school-age youth were enrolled globally in 2021, measuring the share in upper secondary education
- 142 million children and youth worldwide were not attending school due to emergencies and crisis contexts (2016–2021 estimate), quantifying conflict/displacement schooling pressure
- 73% of countries reported that at least one in five learners had learning poverty (unable to read), linked to inadequate school attendance and outcomes
- 6.4 million international students studied globally in 2020, serving as the baseline for recent international student mobility estimates
- 98,000 international students in 2022 were enrolled in New Zealand universities and institutes of technology and polytechnics, measuring inbound tertiary enrollment
- 1.9 million international students studied in the UK in 2023, measuring inbound tertiary international enrollment
- 13% of students in OECD countries reported missing school days during 2021 due to COVID-related disruptions, measuring student absence
- In 2021, 24% of school systems had not returned to pre-pandemic instruction levels, measuring incomplete recovery
- 12.6% of household income spent on education in OECD countries in 2021, measuring education affordability burden
- 2.3 billion US dollars in 2023 global student loan debt changes were recorded in OECD countries (net change in student loan balances), indicating tertiary financing dynamics
- US$ 15,000 average annual tuition and fees at public degree-granting institutions in the US for 2023–24 (out-of-state), measuring cost burden for non-residents
- 4.0% of US K-12 students were two or more races in 2023, measuring K-12 racial/ethnic composition share
- 17.2% of US public-school students were English learners in 2023, measuring EL prevalence in US K-12
- 21% of students in OECD countries reported truancy at least once in the last two weeks in PISA 2022, measuring attendance-related behavior
In 2021, millions faced disrupted schooling, while education costs and learning poverty continued to limit progress.
Related reading
01 · Category
Funding & Costs7 stats
01
12.6% of household income spent on education in OECD countries in 2021, measuring education affordability burden[1]
02
2.3 billion US dollars in 2023 global student loan debt changes were recorded in OECD countries (net change in student loan balances), indicating tertiary financing dynamics[1]
03
US$ 15,000 average annual tuition and fees at public degree-granting institutions in the US for 2023–24 (out-of-state), measuring cost burden for non-residents[2]
04
US$ 28.1 billion in federal student aid (grants) was awarded in 2022–23, measuring financial support volume[3]
05
US$ 150.1 billion in total federal student aid was disbursed in 2022–23, measuring total aid flow size[3]
06
6.9% of GDP was spent on education in OECD countries in 2021, measuring system investment intensity[1]
07
€ 2.0 billion in 2021–2027 Erasmus Mundus actions supports international joint masters, measuring scholarship scale[4]
Interpretation
Funding & Costs Interpretation
In OECD countries, education absorbs 6.9% of GDP and 12.6% of household income in 2021, showing a high combined public and private funding burden, alongside major student-loan growth of about US$2.3 billion in 2023 and large US federal aid flows of US$150.1 billion disbursed in 2022–23.
02 · Category
Enrollment Levels9 stats
01
48% of upper secondary school-age youth were enrolled globally in 2021, measuring the share in upper secondary education[5]
02
142 million children and youth worldwide were not attending school due to emergencies and crisis contexts (2016–2021 estimate), quantifying conflict/displacement schooling pressure[6]
03
73% of countries reported that at least one in five learners had learning poverty (unable to read), linked to inadequate school attendance and outcomes[7]
04
86% of children in the OECD were enrolled in at least secondary education in 2022, measuring secondary attainment participation in OECD[1]
05
18.7 million students were enrolled in US public schools in fall 2023, measuring US public K-12 enrollment[2]
06
8.0 million students were enrolled in US private for-profit degree-granting postsecondary institutions in fall 2023, measuring private for-profit enrollment volume[2]
07
48% of upper-secondary school-age youth were enrolled in 2021 (global), measuring enrollment participation share[8]
08
51% of upper-secondary school-age youth were enrolled in 2016 (global), measuring enrollment participation share[7]
09
49% of upper-secondary school-age youth were enrolled in 2019 (global), measuring enrollment participation share[8]
Interpretation
Enrollment Levels Interpretation
Enrollment levels show both progress and serious gaps, with 48% of upper secondary age youth enrolled globally in 2021 while 142 million children and youth still remain out of school due to emergencies and crises between 2016 and 2021.
report visual · Projection
Enrollment participation share (upper-secondary school-age youth), global
Enrollment participation remained near the same level from 2016 to 2021, with the highest share in 2016 and a slight decline by 2019 and 2021.
51%
Start
-1.21%
CAGR · 5y
48%
Projected
20162021
source-verifiedunesdoc.unesco.org · uis.unesco.org2021
03 · Category
Student Mobility4 stats
01
6.4 million international students studied globally in 2020, serving as the baseline for recent international student mobility estimates[9]
02
98,000 international students in 2022 were enrolled in New Zealand universities and institutes of technology and polytechnics, measuring inbound tertiary enrollment[10]
03
1.9 million international students studied in the UK in 2023, measuring inbound tertiary international enrollment[11]
04
37% of international students in the UK in 2023 came from China, measuring share by origin[11]
Interpretation
Student Mobility Interpretation
In 2020, 6.4 million international students studied worldwide, and by 2023 the UK alone hosted 1.9 million inbound tertiary international students with 37% coming from China, underscoring how student mobility is increasingly shaped by a few key source countries and major destination systems.
More related reading
04 · Category
Attendance & Outcomes3 stats
01
21% of students in OECD countries reported truancy at least once in the last two weeks in PISA 2022, measuring attendance-related behavior[1]
02
13% of students in OECD countries reported arriving at school hungry at least once per week in 2018, measuring food-related attendance impact[1]
03
50% of US students tested proficient or above in mathematics on NAEP in 2022 (Grade 8), measuring math outcome[12]
Interpretation
Attendance & Outcomes Interpretation
Across attendance and outcomes, persistent participation challenges stand out because 21% of OECD students report recent truancy while 13% arrive hungry at least weekly, yet in the US 50% of Grade 8 students reach math proficiency or above, suggesting that attendance pressures coexist with measurable achievement.
05 · Category
Disruption & Recovery2 stats
Interpretation
Disruption & Recovery Interpretation
Under the Disruption and Recovery lens, students still lost ground with 13% missing school days in 2021 due to COVID disruptions and 24% of school systems not yet back to pre-pandemic instruction levels.
06 · Category
Overview9 stats
01
4.0% of US K-12 students were two or more races in 2023, measuring K-12 racial/ethnic composition share[2]
02
17.2% of US public-school students were English learners in 2023, measuring EL prevalence in US K-12[2]
03
7.4% of household expenditure in the US was spent on education-related items in 2022 (share of household spending), measuring cost burden beyond tuition[13]
04
€ 1.9 billion was spent by the Erasmus+ programme on higher education mobility in 2021 (budget execution for higher education mobility), measuring public spending supporting student exchange[14]
05
48% of students in OECD countries reported they feel they belong at school “a lot” in 2022 (student sense of belonging index), measuring learning-related psychosocial engagement[1]
06
51% of students in OECD countries reached at least baseline proficiency in reading in PISA 2022 (share at/above proficiency threshold), measuring reading achievement distribution[1]
07
In Eastern and South-Eastern Europe, Central Asia, 6% of children were out of school in 2021 (UNESCO/UNICEF/World Bank estimates), quantifying regional enrollment shortfall[15]
08
21.2% of students in OECD countries reported arriving at school hungry at least once per week in 2018 (self-reported food insecurity and school hunger frequency), measuring food-related attendance risk[1]
09
1.0 million international students were studying in Germany in 2020 (inbound international students headcount), measuring Germany’s international higher-education enrolment volume[16]
Interpretation
Industry Overview Interpretation
Across the Industry Overview picture, K-12 classrooms are becoming more diverse and varied, with 17.2% of US public school students identified as English learners in 2023, alongside a strong baseline of learning outcomes where 51% of OECD students reached at least proficient reading levels in PISA 2022.
Reference
Cite This Report
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APA
Lukas Bauer. (2026, February 13). Student Population Statistics. Gitnux. https://gitnux.org/student-population-statistics
MLA
Lukas Bauer. "Student Population Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/student-population-statistics.
Chicago
Lukas Bauer. 2026. "Student Population Statistics." Gitnux. https://gitnux.org/student-population-statistics.
Sources & references
16 sources cited across this report