Educational attainment rate, completed lower secondary … lower gender in Tonga
Tonga: Educational attainment rate, completed lower secondary … lower gender was 1 GPIA in 2021. ▲ Rising
Educational attainment rate, completed lower secondary education or in Tonga, 1986–2021
Source: UNESCO Institute for Statistics. Measured in GPIA.
Analysis
The most recent figure for educational attainment rate, completed lower secondary education or in Tonga is 1 GPIA, measured in 2021.
That represents a change of down 0.9% on the previous year and up 1.1% over ten years.
Over the whole period, educational attainment rate, completed lower secondary education or in Tonga peaked at 1.01 GPIA in 2018 and was at its lowest, 0.9179 GPIA, in 1986.
That places Tonga 29th out of 132 countries with data for 2021, putting it in the top quarter.
Educational attainment rate, completed lower secondary … lower gender in Tonga, year by year
| Year | GPIA | Change |
|---|---|---|
| 1986 | 0.9179 GPIA | — |
| 1996 | 0.9563 GPIA | +4.2% |
| 2006 | 0.963 GPIA | +0.7% |
| 2011 | 0.9915 GPIA | +3.0% |
| 2018 | 1.01 GPIA | +2.0% |
| 2021 | 1 GPIA | -0.9% |
Tonga compared with similar countries
- Tonga's 1 GPIA is above the median for upper middle income countries, which is 0.9818 GPIA, 1.0× the median. (38 countries reporting)
- Tonga's 1 GPIA is above the median for East Asia & Pacific, which is 0.9451 GPIA, 1.1× the median. (17 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0.9179 GPIA | 0.9179 GPIA | 0.9179 GPIA | 1 |
| 1990s | 0.9563 GPIA | 0.9563 GPIA | 0.9563 GPIA | 1 |
| 2000s | 0.963 GPIA | 0.963 GPIA | 0.963 GPIA | 1 |
| 2010s | 1 GPIA | 0.9915 GPIA | 1.01 GPIA | 2 |
| 2020s | 1 GPIA | 1 GPIA | 1 GPIA | 1 |
Countries ranked near Tonga
More education data for Tonga
- Gender gap education levels, gaps filled 87.87 (1999)
- Primary enrollment selected countries, gaps filled 98.13 (2023)
- 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)
Frequently asked questions
- What is educational attainment rate, completed lower secondary education or in Tonga?
- Educational attainment rate, completed lower secondary education or in Tonga was 1 GPIA in 2021, according to UNESCO Institute for Statistics.
- What is the highest educational attainment rate, completed lower secondary education or recorded in Tonga?
- The highest recorded value was 1.01 GPIA in 2018.
- What is the lowest educational attainment rate, completed lower secondary education or recorded in Tonga?
- The lowest recorded value was 0.9179 GPIA in 1986.
- How does Tonga rank for educational attainment rate, completed lower secondary education or?
- Tonga ranks 29th out of 132 countries with data for 2021.
- Is educational attainment rate, completed lower secondary education or rising or falling in Tonga?
- Over the last ten years it is up 1.1%. 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 Educational attainment rate, completed lower secondary education or higher, population 25+ years, adjusted gender parity index (GPIA). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 6 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release