Completion rate, lower secondary education, adjusted gender parity in Tonga
Tonga: Completion rate, lower secondary education, adjusted gender parity was 1.11 modelled data in 2025. β² Rising
Completion rate, lower secondary education, adjusted gender parity in Tonga, 1981β2025
Source: UNESCO Institute for Statistics. Measured in modelled data.
Analysis
In 2025, completion rate, lower secondary education, adjusted gender parity in Tonga stood at 1.11 modelled data.
The figure is down 0.2% on the previous year and down 0.8% over ten years.
Over the whole period, completion rate, lower secondary education, adjusted gender parity in Tonga peaked at 1.12 modelled data in 2008 and was at its lowest, 1.02 modelled data, in 1981.
Tonga ranks 37th of 164 countries on this measure, in the top quarter.
The long-run direction has been consistently rising across the 45 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 1.05 modelled data | 1.02 modelled data | 1.07 modelled data | 9 |
| 1990s | 1.08 modelled data | 1.07 modelled data | 1.1 modelled data | 10 |
| 2000s | 1.11 modelled data | 1.1 modelled data | 1.12 modelled data | 10 |
| 2010s | 1.12 modelled data | 1.11 modelled data | 1.12 modelled data | 10 |
| 2020s | 1.11 modelled data | 1.11 modelled data | 1.11 modelled data | 6 |
Countries ranked near Tonga
- 34 Tanzania, United Republic of 1.12 modelled data compare
- 35 Paraguay 1.11 modelled data compare
- 36 Costa Rica 1.11 modelled data compare
- 38 Dominican Republic 1.11 modelled data compare
- 39 Iraq 1.1 modelled data compare
- 40 Zambia 1.1 modelled data compare
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)
- School enrollment, primary 108.8% (2024)
- Primary education, teachers, per capita 0.0079 units per person (2024)
Frequently asked questions
- What is completion rate, lower secondary education, adjusted gender parity in Tonga?
- Completion rate, lower secondary education, adjusted gender parity in Tonga was 1.11 modelled data in 2025, according to UNESCO Institute for Statistics.
- What is the highest completion rate, lower secondary education, adjusted gender parity recorded in Tonga?
- The highest recorded value was 1.12 modelled data in 2008.
- What is the lowest completion rate, lower secondary education, adjusted gender parity recorded in Tonga?
- The lowest recorded value was 1.02 modelled data in 1981.
- How does Tonga rank for completion rate, lower secondary education, adjusted gender parity?
- Tonga ranks 37th out of 164 countries with data for 2025.
- Is completion rate, lower secondary education, adjusted gender parity rising or falling in Tonga?
- Over the last ten years it is down 0.8%. 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 Completion rate, lower secondary education, adjusted gender parity index (GPIA) (modelled data). Statizoid updates them automatically from the source API.
Download this data
CSV Β· JSON β 45 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release