Out-of-school adolescents of lower secondary school age, both sexes in SDG: Least Developed Countries
SDG: Least Developed Countries: Out-of-school adolescents of lower secondary school age, both sexes was 30.94 million in 2025. ▲ Rising
Latest (2025)
30.94 million
Change on year
up 0.6%
Rank
7th
of 39 groups
All-time high
30.94 million
in 2025
All-time low
22.91 million
in 2010
Years of data
26
2000–2025
Out-of-school adolescents of lower secondary school age, both sexes in SDG: Least Developed Countries, 2000–2025
Source: UNESCO Institute for Statistics.
Analysis
In 2025, out-of-school adolescents of lower secondary school age, both sexes in SDG: Least Developed Countries stood at 30.94 million. That is the highest value across all 26 years on record.
The figure is up 0.6% on the previous year and up 30.1% over ten years.
Over the whole period, out-of-school adolescents of lower secondary school age, both sexes in SDG: Least Developed Countries peaked at 30.94 million in 2025 and was at its lowest, 22.91 million, in 2010.
SDG: Least Developed Countries ranks 7th of 39 groups on this measure, in the top quarter.
The long-run direction has been consistently rising across the 26 years of available data.
Out-of-school adolescents of lower secondary school age, both sexes in SDG: Least Developed Countries, year by year
| Year | Value | Change |
|---|---|---|
| 2000 | 25.07 million | — |
| 2001 | 25.20 million | +0.5% |
| 2002 | 25.26 million | +0.2% |
| 2003 | 25.20 million | -0.2% |
| 2004 | 24.80 million | -1.6% |
| 2005 | 24.31 million | -2.0% |
| 2006 | 23.83 million | -2.0% |
| 2007 | 23.46 million | -1.6% |
| 2008 | 23.17 million | -1.2% |
| 2009 | 22.99 million | -0.8% |
| 2010 | 22.91 million | -0.3% |
| 2011 | 22.96 million | +0.2% |
| 2012 | 23.00 million | +0.2% |
| 2013 | 23.07 million | +0.3% |
| 2014 | 23.27 million | +0.9% |
| 2015 | 23.78 million | +2.2% |
| 2016 | 24.62 million | +3.5% |
| 2017 | 25.47 million | +3.5% |
| 2018 | 26.33 million | +3.4% |
| 2019 | 27.11 million | +3.0% |
| 2020 | 28.42 million | +4.8% |
| 2021 | 28.91 million | +1.7% |
| 2022 | 30.08 million | +4.0% |
| 2023 | 30.46 million | +1.3% |
| 2024 | 30.77 million | +1.0% |
| 2025 | 30.94 million | +0.6% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 24.33 million | 22.99 million | 25.26 million | 10 |
| 2010s | 24.25 million | 22.91 million | 27.11 million | 10 |
| 2020s | 29.93 million | 28.42 million | 30.94 million | 6 |
Countries ranked near SDG: Least Developed Countries
- 4 Algeria 2.82 million compare
- 5 Bangladesh 2.34 million compare
- 6 Niger 2.11 million compare
- 7 Burkina Faso 1.41 million compare
- 8 Cameroon 1.26 million compare
- 9 Philippines 1.23 million compare
- 10 Madagascar 1.15 million compare
More education data for SDG: Least Developed Countries
- Enrolment in secondary education, both sexes (number), gaps filled 75.92 million (2024)
- Repeaters in primary education, all grades, both sexes (number), gaps 14.09 million (2024)
- Enrolment in secondary education, female (number), gaps filled 36.37 million (2024)
- Enrolment in pre-primary education, male (number), gaps filled 11.66 million (2024)
- Teachers in primary education, both sexes (number), annual growth rate 0.684 % change on previous year (2024)
- Enrolment in pre-primary education, female (number), gaps filled 11.32 million (2024)
- Teachers in primary education, both sexes (number), gaps filled 4.43 million (2024)
- Enrolment in secondary education, both sexes (number), annual growth 0.7503 % change on previous year (2024)
- Enrolment in primary education, male (number), gaps filled 87.82 million (2024)
- Enrolment in primary education, female (number), annual growth rate 1.09 % change on previous year (2024)
Frequently asked questions
- What is out-of-school adolescents of lower secondary school age, both sexes in SDG: Least Developed Countries?
- Out-of-school adolescents of lower secondary school age, both sexes in SDG: Least Developed Countries was 30.94 million in 2025, according to UNESCO Institute for Statistics.
- What is the highest out-of-school adolescents of lower secondary school age, both sexes recorded in SDG: Least Developed Countries?
- The highest recorded value was 30.94 million in 2025.
- What is the lowest out-of-school adolescents of lower secondary school age, both sexes recorded in SDG: Least Developed Countries?
- The lowest recorded value was 22.91 million in 2010.
- How does SDG: Least Developed Countries rank for out-of-school adolescents of lower secondary school age, both sexes?
- SDG: Least Developed Countries ranks 7th out of 39 groups with data for 2025.
- Is out-of-school adolescents of lower secondary school age, both sexes rising or falling in SDG: Least Developed Countries?
- Over the last ten years it is up 30.1%. The long-run trend across the full record is rising.
- Where does this SDG: Least Developed Countries data come from?
- The figures come from UNESCO Institute for Statistics, published as part of Out-of-school adolescents of lower secondary school age, both sexes (number). Statizoid updates them automatically from the source API.
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About this data
February 2026 Data Release