School life expectancy, tertiary, adjusted gender parity index (GPIA) in Tonga
Tonga: School life expectancy, tertiary, adjusted gender parity index (GPIA) was 1.64 GPIA in 2024. ▲ Rising
School life expectancy, tertiary, adjusted gender parity index in Tonga, 1978–2024
Source: UNESCO Institute for Statistics. Measured in GPIA.
Analysis
In 2024, school life expectancy, tertiary, adjusted gender parity index in Tonga stood at 1.64 GPIA. That is the highest value across all 11 years on record.
Compared with earlier readings it is up 10.8% on the previous year and up 22.5% over five years.
Over the whole period, school life expectancy, tertiary, adjusted gender parity index in Tonga peaked at 1.64 GPIA in 2024 and was at its lowest, 0.6735 GPIA, in 1979.
That places Tonga 7th out of 191 countries with data for 2024, putting it in the top 10%.
The long-run direction has been consistently rising across the 11 years of available data.
School life expectancy, tertiary, adjusted gender parity index (GPIA) in Tonga, year by year
| Year | GPIA | Change |
|---|---|---|
| 1978 | 0.8375 GPIA | — |
| 1979 | 0.6735 GPIA | -19.6% |
| 1981 | 0.7847 GPIA | +16.5% |
| 1984 | 1.25 GPIA | +59.2% |
| 1985 | 1.25 GPIA | +0.5% |
| 1999 | 1.22 GPIA | -2.5% |
| 2002 | 1.4 GPIA | +14.0% |
| 2003 | 1.4 GPIA | -0.0% |
| 2020 | 1.34 GPIA | -4.1% |
| 2023 | 1.48 GPIA | +10.6% |
| 2024 | 1.64 GPIA | +10.8% |
Tonga compared with similar countries
- Tonga's 1.64 GPIA is above the median for upper middle income countries, which is 1.26 GPIA, 1.3× the median. (55 countries reporting)
- Tonga's 1.64 GPIA is above the median for East Asia & Pacific, which is 1.2 GPIA, 1.4× the median. (24 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 0.7555 GPIA | 0.6735 GPIA | 0.8375 GPIA | 2 |
| 1980s | 1.1 GPIA | 0.7847 GPIA | 1.25 GPIA | 3 |
| 1990s | 1.22 GPIA | 1.22 GPIA | 1.22 GPIA | 1 |
| 2000s | 1.4 GPIA | 1.4 GPIA | 1.4 GPIA | 2 |
| 2020s | 1.49 GPIA | 1.34 GPIA | 1.64 GPIA | 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, adjusted gender parity index in Tonga?
- School life expectancy, tertiary, adjusted gender parity index in Tonga was 1.64 GPIA in 2024, according to UNESCO Institute for Statistics.
- What is the highest school life expectancy, tertiary, adjusted gender parity index recorded in Tonga?
- The highest recorded value was 1.64 GPIA in 2024.
- What is the lowest school life expectancy, tertiary, adjusted gender parity index recorded in Tonga?
- The lowest recorded value was 0.6735 GPIA in 1979.
- How does Tonga rank for school life expectancy, tertiary, adjusted gender parity index?
- Tonga ranks 7th out of 191 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, adjusted gender parity index (GPIA). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 11 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release