School life expectancy, primary to tertiary, adjusted gender parity in Tonga
Tonga: School life expectancy, primary to tertiary, adjusted gender parity was 1.22 GPIA in 2023. ▲ Rising
School life expectancy, primary to tertiary, adjusted gender parity in Tonga, 1970–2023
Source: UNESCO Institute for Statistics. Measured in GPIA.
Analysis
The most recent figure for school life expectancy, primary to tertiary, adjusted gender parity in Tonga is 1.22 GPIA, measured in 2023. That is the highest value across all 9 years on record.
That represents a change of up 8.1% on the previous year and up 8.1% over five years.
Over the whole period, school life expectancy, primary to tertiary, adjusted gender parity in Tonga peaked at 1.22 GPIA in 2023 and was at its lowest, 0.9537 GPIA, in 1981.
That places Tonga 1st out of 179 countries with data for 2023, putting it in the top 10%.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 0.9791 GPIA | 0.965 GPIA | 0.9932 GPIA | 2 |
| 1980s | 1.01 GPIA | 0.9537 GPIA | 1.05 GPIA | 3 |
| 1990s | 1.02 GPIA | 1.02 GPIA | 1.02 GPIA | 1 |
| 2000s | 1.04 GPIA | 1.04 GPIA | 1.04 GPIA | 1 |
| 2020s | 1.18 GPIA | 1.13 GPIA | 1.22 GPIA | 2 |
Countries ranked near Tonga
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)
- Primary secondary enrollment completion rates, gaps filled 108.79 (2024)
- School enrollment, primary 108.8% (2024)
Frequently asked questions
- What is school life expectancy, primary to tertiary, adjusted gender parity in Tonga?
- School life expectancy, primary to tertiary, adjusted gender parity in Tonga was 1.22 GPIA in 2023, according to UNESCO Institute for Statistics.
- What is the highest school life expectancy, primary to tertiary, adjusted gender parity recorded in Tonga?
- The highest recorded value was 1.22 GPIA in 2023.
- What is the lowest school life expectancy, primary to tertiary, adjusted gender parity recorded in Tonga?
- The lowest recorded value was 0.9537 GPIA in 1981.
- How does Tonga rank for school life expectancy, primary to tertiary, adjusted gender parity?
- Tonga ranks 1st out of 179 countries with data for 2023.
- Where does this Tonga data come from?
- The figures come from UNESCO Institute for Statistics, published as part of School life expectancy, primary to tertiary, adjusted gender parity index (GPIA). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 9 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release