Cook Islands vs Tonga: Duration of compulsory education
Cook Islands
12 years
in 2025
Tonga
15 years
in 2025
Cook Islands rank
1st
Tonga rank
3rd
Duration of compulsory education over time
- Cook Islands
- Tonga
How they compare
Tonga currently reports 15 years against 12 years in Cook Islands, a difference of 3 years.
That makes Tonga's figure about 1.2 times Cook Islands's.
The two have swapped places 1 time across 28 shared years of data; in 1998 it was Cook Islands ahead.
Cook Islands ranks 1st and Tonga ranks 3rd of 6 countries.
Across the 4 decades both report, Cook Islands averaged higher in 2 and Tonga in 2.
Head to head by decade
| Decade | Cook Islands | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 10 years | 6 years | 4 years | Cook Islands |
| 2000s | 10.1 years | 6 years | 4.1 years | Cook Islands |
| 2010s | 11.5 years | 11.8 years | 0.3 years | Tonga |
| 2020s | 12 years | 15 years | 3 years | Tonga |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher duration of compulsory education, Cook Islands or Tonga?
- Tonga, at 15 years against 12 years in Cook Islands as of 2025.
- What is the difference in duration of compulsory education between Cook Islands and Tonga?
- 3 years, with Tonga ahead.
- How many years of comparable data are there for Cook Islands and Tonga?
- 28 years are reported by both, from 1998 to 2025.
- How do Cook Islands and Tonga rank globally for duration of compulsory education?
- Cook Islands ranks 1st and Tonga ranks 3rd of 6 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Duration of compulsory 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