Mongolia vs Tonga: Theoretical duration of secondary education
Mongolia
7 years
in 2025
Tonga
7 years
in 2025
Mongolia rank
26th
Tonga rank
26th
Theoretical duration of secondary education over time
- Mongolia
- Tonga
How they compare
Mongolia currently reports 7 years against 7 years in Tonga, a difference of 0 years.
The two have swapped places 4 times across 56 shared years of data; in 1970 it was Tonga ahead.
Mongolia ranks 26th and Tonga ranks 26th of 215 countries.
Across the 6 decades both report, Mongolia averaged higher in 3 and Tonga in 1.
Head to head by decade
| Decade | Mongolia | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 6.7 years | 6 years | 0.7 years | Mongolia |
| 1980s | 7 years | 6.6 years | 0.4 years | Mongolia |
| 1990s | 6.7 years | 6.8 years | 0.1 years | Tonga |
| 2000s | 6 years | 6 years | 0 years | — |
| 2010s | 6.9 years | 6.8 years | 0.1 years | Mongolia |
| 2020s | 7 years | 7 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of secondary education, Mongolia or Tonga?
- Mongolia, at 7 years against 7 years in Tonga as of 2025.
- What is the difference in theoretical duration of secondary education between Mongolia and Tonga?
- 0 years, with Mongolia ahead.
- How many years of comparable data are there for Mongolia and Tonga?
- 56 years are reported by both, from 1970 to 2025.
- How do Mongolia and Tonga rank globally for theoretical duration of secondary education?
- Mongolia ranks 26th and Tonga ranks 26th of 215 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Theoretical duration of 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