School age population, lower secondary education, both sexes (number) in Tonga
Tonga: School age population, lower secondary education, both sexes (number) was 10,143 in 2025. ▲ Rising
Latest (2025)
10,143
Change on year
down 0.4%
World rank
185th
of 220 countries
All-time high
11,655
in 2016
All-time low
8,153
in 1970
Years of data
56
1970–2025
School age population, lower secondary education, both sexes in Tonga, 1970–2025
Source: UNESCO Institute for Statistics.
Analysis
In 2025, school age population, lower secondary education, both sexes in Tonga stood at 10,143.
Compared with earlier readings it is down 0.4% on the previous year and down 10.0% over ten years.
Over the whole period, school age population, lower secondary education, both sexes in Tonga peaked at 11,655 in 2016 and was at its lowest, 8,153, in 1970.
Tonga ranks 185th of 220 countries on this measure, in the bottom quarter.
The long-run direction has been consistently rising across the 56 years of available data.
School age population, lower secondary education, both sexes (number) in Tonga, year by year
| Year | Value | Change |
|---|---|---|
| 1970 | 8,153 | — |
| 1971 | 8,376 | +2.7% |
| 1972 | 8,617 | +2.9% |
| 1973 | 8,889 | +3.2% |
| 1974 | 9,142 | +2.8% |
| 1975 | 9,542 | +4.4% |
| 1976 | 10,000 | +4.8% |
| 1977 | 10,459 | +4.6% |
| 1978 | 10,474 | +0.1% |
| 1979 | 10,502 | +0.3% |
| 1980 | 10,583 | +0.8% |
| 1981 | 10,716 | +1.3% |
| 1982 | 10,848 | +1.2% |
| 1983 | 10,915 | +0.6% |
| 1984 | 10,799 | -1.1% |
| 1985 | 10,506 | -2.7% |
| 1986 | 10,160 | -3.3% |
| 1987 | 9,837 | -3.2% |
| 1988 | 9,591 | -2.5% |
| 1989 | 9,459 | -1.4% |
| 1990 | 9,457 | -0.0% |
| 1991 | 9,567 | +1.2% |
| 1992 | 9,731 | +1.7% |
| 1993 | 9,922 | +2.0% |
| 1994 | 10,080 | +1.6% |
| 1995 | 10,173 | +0.9% |
| 1996 | 10,225 | +0.5% |
| 1997 | 10,184 | -0.4% |
| 1998 | 9,995 | -1.9% |
| 1999 | 9,768 | -2.3% |
| 2000 | 9,910 | +1.5% |
| 2001 | 9,909 | -0.0% |
| 2002 | 9,889 | -0.2% |
| 2003 | 9,877 | -0.1% |
| 2004 | 9,864 | -0.1% |
| 2005 | 9,852 | -0.1% |
| 2006 | 9,841 | -0.1% |
| 2007 | 9,792 | -0.5% |
| 2008 | 9,645 | -1.5% |
| 2009 | 9,546 | -1.0% |
| 2010 | 9,422 | -1.3% |
| 2011 | 9,285 | -1.5% |
| 2012 | 11,381 | +22.6% |
| 2013 | 11,244 | -1.2% |
| 2014 | 11,258 | +0.1% |
| 2015 | 11,274 | +0.1% |
| 2016 | 11,655 | +3.4% |
| 2017 | 11,636 | -0.2% |
| 2018 | 11,616 | -0.2% |
| 2019 | 11,596 | -0.2% |
| 2020 | 11,576 | -0.2% |
| 2021 | 11,557 | -0.2% |
| 2022 | 11,538 | -0.2% |
| 2023 | 10,157 | -12.0% |
| 2024 | 10,186 | +0.3% |
| 2025 | 10,143 | -0.4% |
Tonga compared with similar countries
- Tonga's 10,143 is below the median for upper middle income countries, which is 354,188, 3% of the median. (58 countries reporting)
- Tonga's 10,143 is below the median for East Asia & Pacific, which is 90,189, 11% of the median. (35 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 9,415 | 8,153 | 10,502 | 10 |
| 1980s | 10,341 | 9,459 | 10,915 | 10 |
| 1990s | 9,910 | 9,457 | 10,225 | 10 |
| 2000s | 9,812 | 9,546 | 9,910 | 10 |
| 2010s | 11,037 | 9,285 | 11,655 | 10 |
| 2020s | 10,860 | 10,143 | 11,576 | 6 |
Countries ranked near Tonga
More education data for Tonga
- Teachers in secondary education, both sexes (number), gaps filled 1,086 (2015)
- Repeaters in primary education, all grades, both sexes (number), gaps 20 (2024)
- Enrolment in pre-primary education, male (number), gaps filled 1,228 (2024)
- Enrolment in pre-primary education, female (number), gaps filled 1,164 (2024)
- Secondary education, pupils, gaps filled 16,132 (2024)
- Primary education, duration (years), annual growth rate 0 % change on previous year (2025)
- Primary education, pupils, gaps filled 15,644 (2024)
- Primary education, pupils, annual growth rate -2.92 % change on previous year (2024)
- Primary education, pupils, per unit of GDP 0 units per US$ of GDP (2024)
- Primary education, pupils, per capita 0.1502 units per person (2024)
Frequently asked questions
- What is school age population, lower secondary education, both sexes in Tonga?
- School age population, lower secondary education, both sexes in Tonga was 10,143 in 2025, according to UNESCO Institute for Statistics.
- What is the highest school age population, lower secondary education, both sexes recorded in Tonga?
- The highest recorded value was 11,655 in 2016.
- What is the lowest school age population, lower secondary education, both sexes recorded in Tonga?
- The lowest recorded value was 8,153 in 1970.
- How does Tonga rank for school age population, lower secondary education, both sexes?
- Tonga ranks 185th out of 220 countries with data for 2025.
- Is school age population, lower secondary education, both sexes rising or falling in Tonga?
- Over the last ten years it is down 10.0%. The long-run trend across the full record is rising.
- Where does this Tonga data come from?
- The figures come from UNESCO Institute for Statistics, published as part of School age population, lower secondary education, both sexes (number). Statizoid updates them automatically from the source API.
Download this data
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About this data
February 2026 Data Release