Niue vs Tonga: Theoretical duration of lower secondary education (years)
Niue
4 years
in 2025
Tonga
4 years
in 2025
Niue rank
18th
Tonga rank
18th
Theoretical duration of lower secondary education (years) over time
- Niue
- Tonga
How they compare
Niue currently reports 4 years against 4 years in Tonga, a difference of 0 years.
Across all 56 years both countries report, Tonga has been ahead every year.
Niue ranks 18th and Tonga ranks 18th of 221 countries.
Tonga has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Niue | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 4 years | 4 years | 0 years | — |
| 1980s | 4 years | 4 years | 0 years | — |
| 1990s | 4 years | 4 years | 0 years | — |
| 2000s | 4 years | 4 years | 0 years | — |
| 2010s | 4 years | 4.8 years | 0.8 years | Tonga |
| 2020s | 4 years | 4.5 years | 0.5 years | Tonga |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of lower secondary education, Niue or Tonga?
- Niue, at 4 years against 4 years in Tonga as of 2025.
- What is the difference in theoretical duration of lower secondary education between Niue and Tonga?
- 0 years, with Niue ahead.
- How many years of comparable data are there for Niue and Tonga?
- 56 years are reported by both, from 1970 to 2025.
- How do Niue and Tonga rank globally for theoretical duration of lower secondary education?
- Niue ranks 18th and Tonga ranks 18th of 221 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Theoretical duration of lower secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
February 2026 Data Release