Adult literacy rate, population 15+ years, adjusted gender parity in Tonga
Tonga: Adult literacy rate, population 15+ years, adjusted gender parity was 1 GPIA in 2023. ▲ Rising
Adult literacy rate, population 15+ years, adjusted gender parity in Tonga, 1976–2023
Source: UNESCO Institute for Statistics. Measured in GPIA.
Analysis
The most recent figure for adult literacy rate, population 15+ years, adjusted gender parity in Tonga is 1 GPIA, measured in 2023. That is the lowest value across all 7 years on record.
Compared with earlier readings it is unchanged over ten years.
Over the whole period, adult literacy rate, population 15+ years, adjusted gender parity in Tonga peaked at 1.14 GPIA in 2019 and was at its lowest, 1 GPIA, in 1976.
Tonga ranks 10th of 88 countries on this measure, in the top quarter.
Adult literacy rate, population 15+ years, adjusted gender parity in Tonga, year by year
| Year | GPIA | Change |
|---|---|---|
| 1976 | 1 GPIA | — |
| 1996 | 1 GPIA | +0.0% |
| 2006 | 1 GPIA | +0.0% |
| 2011 | 1 GPIA | +0.0% |
| 2016 | 1.01 GPIA | +1.0% |
| 2019 | 1.14 GPIA | +12.9% |
| 2023 | 1 GPIA | -12.3% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 1 GPIA | 1 GPIA | 1 GPIA | 1 |
| 1990s | 1 GPIA | 1 GPIA | 1 GPIA | 1 |
| 2000s | 1 GPIA | 1 GPIA | 1 GPIA | 1 |
| 2010s | 1.05 GPIA | 1 GPIA | 1.14 GPIA | 3 |
| 2020s | 1 GPIA | 1 GPIA | 1 GPIA | 1 |
Countries ranked near Tonga
- 9 Venezuela, Bolivarian Republic of 1 GPIA compare
- 10 Armenia 1 GPIA compare
- 10 Azerbaijan 1 GPIA compare
- 10 Chile 1 GPIA compare
- 10 Spain 1 GPIA compare
- 10 Georgia 1 GPIA compare
- 10 Maldives 1 GPIA compare
- 10 Philippines 1 GPIA compare
- 10 Qatar 1 GPIA compare
- 10 Uzbekistan 1 GPIA compare
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 adult literacy rate, population 15+ years, adjusted gender parity in Tonga?
- Adult literacy rate, population 15+ years, adjusted gender parity in Tonga was 1 GPIA in 2023, according to UNESCO Institute for Statistics.
- What is the highest adult literacy rate, population 15+ years, adjusted gender parity recorded in Tonga?
- The highest recorded value was 1.14 GPIA in 2019.
- What is the lowest adult literacy rate, population 15+ years, adjusted gender parity recorded in Tonga?
- The lowest recorded value was 1 GPIA in 1976.
- How does Tonga rank for adult literacy rate, population 15+ years, adjusted gender parity?
- Tonga ranks 10th out of 88 countries with data for 2023.
- Is adult literacy rate, population 15+ years, adjusted gender parity 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 Adult literacy rate, population 15+ years, adjusted gender parity index (GPIA). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 7 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release