School life expectancy, tertiary, both sexes (years) (both sexes) in Tonga
Tonga: School life expectancy, tertiary, both sexes (years) (both sexes) was 4.05 years in 2024. ◆ Volatile
School life expectancy, tertiary, both sexes in Tonga, 1978–2024
Source: UNESCO Institute for Statistics. Measured in years.
Analysis
The most recent figure for school life expectancy, tertiary, both sexes in Tonga is 4.05 years, measured in 2024. That is the highest value across all 13 years on record.
That represents a change of up 48.2% on the previous year and up 87.0% over five years.
Over the whole period, school life expectancy, tertiary, both sexes in Tonga peaked at 4.05 years in 2024 and was at its lowest, 0.0905 years, in 1979.
That places Tonga 25th out of 196 countries with data for 2024, putting it in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
School life expectancy, tertiary, both sexes (years) (both sexes) in Tonga, year by year
| Year | years | Change |
|---|---|---|
| 1978 | 0.1037 years | — |
| 1979 | 0.0905 years | -12.7% |
| 1981 | 0.3571 years | +294.5% |
| 1984 | 0.3412 years | -4.5% |
| 1985 | 0.3445 years | +1.0% |
| 1999 | 0.1713 years | -50.3% |
| 2000 | 0.2687 years | +56.9% |
| 2001 | 0.2313 years | -13.9% |
| 2002 | 0.3064 years | +32.5% |
| 2003 | 0.3412 years | +11.3% |
| 2020 | 2.17 years | +535.5% |
| 2023 | 2.73 years | +26.1% |
| 2024 | 4.05 years | +48.2% |
Tonga compared with similar countries
- Tonga's 4.05 years is above the median for upper middle income countries, which is 2.5 years, 1.6× the median. (56 countries reporting)
- Tonga's 4.05 years is above the median for East Asia & Pacific, which is 2.77 years, 1.5× the median. (26 countries reporting)
Biggest year-on-year movements
Years where School life expectancy, tertiary, both sexes (years) (both sexes) in Tonga changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2020 | +535.5% | 0.3412 years | 2.17 years |
| 1981 | +294.5% | 0.0905 years | 0.3571 years |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 0.0971 years | 0.0905 years | 0.1037 years | 2 |
| 1980s | 0.3476 years | 0.3412 years | 0.3571 years | 3 |
| 1990s | 0.1713 years | 0.1713 years | 0.1713 years | 1 |
| 2000s | 0.2869 years | 0.2313 years | 0.3412 years | 4 |
| 2020s | 2.99 years | 2.17 years | 4.05 years | 3 |
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 life expectancy, tertiary, both sexes in Tonga?
- School life expectancy, tertiary, both sexes in Tonga was 4.05 years in 2024, according to UNESCO Institute for Statistics.
- What is the highest school life expectancy, tertiary, both sexes recorded in Tonga?
- The highest recorded value was 4.05 years in 2024.
- What is the lowest school life expectancy, tertiary, both sexes recorded in Tonga?
- The lowest recorded value was 0.0905 years in 1979.
- How does Tonga rank for school life expectancy, tertiary, both sexes?
- Tonga ranks 25th out of 196 countries with data for 2024.
- Where does this Tonga data come from?
- The figures come from UNESCO Institute for Statistics, published as part of School life expectancy, tertiary, both sexes (years). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 13 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release