Duration of compulsory education in Tonga
Tonga: Duration of compulsory education was 15 years in 2025. ▲ Rising
Duration of compulsory education in Tonga, 1998–2025
Source: UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data. Measured in years.
Analysis
In 2025, duration of compulsory education in Tonga stood at 15 years. That is the highest value across all 28 years on record.
The figure is unchanged over ten years.
Over the whole period, duration of compulsory education in Tonga peaked at 15 years in 2014 and was at its lowest, 6 years, in 1998.
That places Tonga 3rd out of 205 countries with data for 2025, putting it in the top 10%.
The long-run direction has been consistently rising across the 28 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 6 years | 6 years | 6 years | 2 |
| 2000s | 6 years | 6 years | 6 years | 10 |
| 2010s | 11.8 years | 6 years | 15 years | 10 |
| 2020s | 15 years | 15 years | 15 years | 6 |
Countries ranked near Tonga
More education data for Tonga
- Official entrance age to pre-primary education 4 years (2025)
- Duration of pre-primary education 2 years (2025)
- Lower secondary school starting age 12 years (2025)
- Primary school starting age 6 years (2025)
- Population ages 0-14 34.9% (2025)
- Population ages 15-64 58.2% (2025)
- School enrollment, primary 108.8% (2024)
- Primary education, teachers 818 (2024)
- Fertility rate vs. average years of schooling 3.1 live births per woman (2024)
- School enrollment, primary, female 110.7% (2024)
Frequently asked questions
- What is duration of compulsory education in Tonga?
- Duration of compulsory education in Tonga was 15 years in 2025, according to UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data.
- What is the highest duration of compulsory education recorded in Tonga?
- The highest recorded value was 15 years in 2014.
- What is the lowest duration of compulsory education recorded in Tonga?
- The lowest recorded value was 6 years in 1998.
- How does Tonga rank for duration of compulsory education?
- Tonga ranks 3rd out of 205 countries with data for 2025.
- Is duration of compulsory education 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 (2026) – with minor processing by Our World in Data, published as part of Duration of compulsory education. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 28 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
The number of years of compulsory education is based on students starting at the earliest entrance age, studying full-time, and advancing without grade repetition or skipping.