Sao Tome and Principe vs South Sudan: Theoretical duration of secondary education
Sao Tome and Principe
6 years
in 2025
South Sudan
6 years
in 2025
Sao Tome and Principe rank
99th
South Sudan rank
99th
Theoretical duration of secondary education over time
- Sao Tome and Principe
- South Sudan
How they compare
Sao Tome and Principe currently reports 6 years against 6 years in South Sudan, a difference of 0 years.
Across all 27 years both countries report, South Sudan has been ahead every year.
Sao Tome and Principe ranks 99th and South Sudan ranks 99th of 221 countries.
South Sudan has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Sao Tome and Principe | South Sudan | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 5 years | 6 years | 1 years | South Sudan |
| 2000s | 5 years | 6 years | 1 years | South Sudan |
| 2010s | 5.9 years | 6 years | 0.1 years | South Sudan |
| 2020s | 6 years | 6 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of secondary education, Sao Tome and Principe or South Sudan?
- Sao Tome and Principe, at 6 years against 6 years in South Sudan as of 2025.
- What is the difference in theoretical duration of secondary education between Sao Tome and Principe and South Sudan?
- 0 years, with Sao Tome and Principe ahead.
- How many years of comparable data are there for Sao Tome and Principe and South Sudan?
- 27 years are reported by both, from 1999 to 2025.
- How do Sao Tome and Principe and South Sudan rank globally for theoretical duration of secondary education?
- Sao Tome and Principe ranks 99th and South Sudan ranks 99th of 221 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