Educational attainment: at least some primary (ISCED 1), population in Tonga
Tonga: Educational attainment: at least some primary (ISCED 1), population was 1.01 GPIA in 2023. ▬ Flat
Educational attainment: at least some primary (ISCED 1), population in Tonga, 1986–2023
Source: UNESCO Institute for Statistics. Measured in GPIA.
Analysis
The most recent figure for educational attainment: at least some primary (isced 1), population in Tonga is 1.01 GPIA, measured in 2023. That is the highest value across all 8 years on record.
The figure is up 0.6% on the previous year and up 0.5% over ten years.
Over the whole period, educational attainment: at least some primary (isced 1), population in Tonga peaked at 1.01 GPIA in 2023 and was at its lowest, 0.9849 GPIA, in 1986.
That places Tonga 7th out of 132 countries with data for 2023, putting it in the top 10%.
Educational attainment: at least some primary (ISCED 1), population in Tonga, year by year
| Year | GPIA | Change |
|---|---|---|
| 1986 | 0.9849 GPIA | — |
| 2006 | 0.9985 GPIA | +1.4% |
| 2011 | 1 GPIA | +0.2% |
| 2016 | 1 GPIA | -0.1% |
| 2018 | 1 GPIA | +0.0% |
| 2019 | 0.9983 GPIA | -0.2% |
| 2021 | 1 GPIA | +0.2% |
| 2023 | 1.01 GPIA | +0.6% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0.9849 GPIA | 0.9849 GPIA | 0.9849 GPIA | 1 |
| 2000s | 0.9985 GPIA | 0.9985 GPIA | 0.9985 GPIA | 1 |
| 2010s | 0.9999 GPIA | 0.9983 GPIA | 1 GPIA | 4 |
| 2020s | 1 GPIA | 1 GPIA | 1.01 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 educational attainment: at least some primary (isced 1), population in Tonga?
- Educational attainment: at least some primary (isced 1), population in Tonga was 1.01 GPIA in 2023, according to UNESCO Institute for Statistics.
- What is the highest educational attainment: at least some primary (isced 1), population recorded in Tonga?
- The highest recorded value was 1.01 GPIA in 2023.
- What is the lowest educational attainment: at least some primary (isced 1), population recorded in Tonga?
- The lowest recorded value was 0.9849 GPIA in 1986.
- How does Tonga rank for educational attainment: at least some primary (isced 1), population?
- Tonga ranks 7th out of 132 countries with data for 2023.
- Is educational attainment: at least some primary (isced 1), population rising or falling in Tonga?
- Over the last ten years it is up 0.5%. The long-run trend across the full record is flat.
- Where does this Tonga data come from?
- The figures come from UNESCO Institute for Statistics, published as part of Educational attainment: at least some primary (ISCED 1), population 25+ years, adjusted gender parity index (GPIA). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 8 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release