Theoretical duration of post-secondary non-tertiary education in Tonga
Tonga: Theoretical duration of post-secondary non-tertiary education was 2 years in 2025. ▲ Rising
Latest (2025)
2 years
Change on year
unchanged
World rank
13th
of 171 countries
All-time high
2 years
in 2012
All-time low
1 years
in 1998
Years of data
28
1998–2025
Theoretical duration of post-secondary non-tertiary education in Tonga, 1998–2025
Source: UNESCO Institute for Statistics. Measured in years.
Analysis
Tonga recorded 2 years for theoretical duration of post-secondary non-tertiary education in 2025. That is the highest value across all 28 years on record.
The figure is unchanged over ten years.
Over the whole period, theoretical duration of post-secondary non-tertiary education in Tonga peaked at 2 years in 2012 and was at its lowest, 1 years, in 1998.
Tonga ranks 13th of 171 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 28 years of available data.
Theoretical duration of post-secondary non-tertiary education in Tonga, year by year
| Year | years | Change |
|---|---|---|
| 1998 | 1 years | — |
| 1999 | 1 years | +0.0% |
| 2000 | 1 years | +0.0% |
| 2001 | 1 years | +0.0% |
| 2002 | 1 years | +0.0% |
| 2003 | 1 years | +0.0% |
| 2004 | 1 years | +0.0% |
| 2005 | 1 years | +0.0% |
| 2006 | 1 years | +0.0% |
| 2007 | 1 years | +0.0% |
| 2008 | 1 years | +0.0% |
| 2009 | 1 years | +0.0% |
| 2010 | 1 years | +0.0% |
| 2011 | 1 years | +0.0% |
| 2012 | 2 years | +100.0% |
| 2013 | 2 years | +0.0% |
| 2014 | 2 years | +0.0% |
| 2015 | 2 years | +0.0% |
| 2016 | 2 years | +0.0% |
| 2017 | 2 years | +0.0% |
| 2018 | 2 years | +0.0% |
| 2019 | 2 years | +0.0% |
| 2020 | 2 years | +0.0% |
| 2021 | 2 years | +0.0% |
| 2022 | 2 years | +0.0% |
| 2023 | 2 years | +0.0% |
| 2024 | 2 years | +0.0% |
| 2025 | 2 years | +0.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 1 years | 1 years | 1 years | 2 |
| 2000s | 1 years | 1 years | 1 years | 10 |
| 2010s | 1.8 years | 1 years | 2 years | 10 |
| 2020s | 2 years | 2 years | 2 years | 6 |
Countries ranked near Tonga
- 12 Colombia 2.5 years compare
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- 13 Greece 2 years compare
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More education data for Tonga
- Primary education, teachers, gaps filled 818 (2024)
- Duration of pre primary education, annual growth rate 0 % change on previous year (2025)
- Duration of pre primary education 2 (2025)
- Official entrance age to pre primary education 4 (2025)
- Population ages 15-64 58.2% (2025)
- Population ages 0-14 34.9% (2025)
- Lower secondary school starting age 12 years (2025)
- Primary school starting age 6 years (2025)
- Primary secondary enrollment completion rates, gaps filled 108.79 (2024)
- School enrollment, primary 108.8% (2024)
Frequently asked questions
- What is theoretical duration of post-secondary non-tertiary education in Tonga?
- Theoretical duration of post-secondary non-tertiary education in Tonga was 2 years in 2025, according to UNESCO Institute for Statistics.
- What is the highest theoretical duration of post-secondary non-tertiary education recorded in Tonga?
- The highest recorded value was 2 years in 2012.
- What is the lowest theoretical duration of post-secondary non-tertiary education recorded in Tonga?
- The lowest recorded value was 1 years in 1998.
- How does Tonga rank for theoretical duration of post-secondary non-tertiary education?
- Tonga ranks 13th out of 171 countries with data for 2025.
- Is theoretical duration of post-secondary non-tertiary education rising or falling in Tonga?
- Over the last ten years it is unchanged. 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 Theoretical duration of post-secondary non-tertiary education (years). Statizoid updates them automatically from the source API.
Download this data
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About this data
February 2026 Data Release