Secondary education, duration (years) in Sao Tome and Principe
Sao Tome and Principe: Secondary education, duration (years) was 6 years in 2025. ▼ Falling
Latest (2025)
6 years
Change on year
unchanged
World rank
91st
of 209 countries
All-time high
7 years
in 1970
All-time low
5 years
in 1999
Years of data
56
1970–2025
Secondary education, duration in Sao Tome and Principe, 1970–2025
Source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Measured in years.
Analysis
Sao Tome and Principe recorded 6 years for secondary education, duration in 2025.
The figure is unchanged over ten years.
Over the whole period, secondary education, duration in Sao Tome and Principe peaked at 7 years in 1970 and was at its lowest, 5 years, in 1999.
Sao Tome and Principe ranks 91st of 209 countries on this measure, in the middle of the range.
The long-run direction has been consistently falling across the 56 years of available data.
Secondary education, duration (years) in Sao Tome and Principe, year by year
| Year | years | Change |
|---|---|---|
| 1970 | 7 years | — |
| 1971 | 7 years | +0.0% |
| 1972 | 7 years | +0.0% |
| 1973 | 7 years | +0.0% |
| 1974 | 7 years | +0.0% |
| 1975 | 7 years | +0.0% |
| 1976 | 7 years | +0.0% |
| 1977 | 7 years | +0.0% |
| 1978 | 7 years | +0.0% |
| 1979 | 7 years | +0.0% |
| 1980 | 7 years | +0.0% |
| 1981 | 7 years | +0.0% |
| 1982 | 7 years | +0.0% |
| 1983 | 7 years | +0.0% |
| 1984 | 7 years | +0.0% |
| 1985 | 7 years | +0.0% |
| 1986 | 7 years | +0.0% |
| 1987 | 7 years | +0.0% |
| 1988 | 7 years | +0.0% |
| 1989 | 7 years | +0.0% |
| 1990 | 7 years | +0.0% |
| 1991 | 7 years | +0.0% |
| 1992 | 7 years | +0.0% |
| 1993 | 7 years | +0.0% |
| 1994 | 7 years | +0.0% |
| 1995 | 7 years | +0.0% |
| 1996 | 7 years | +0.0% |
| 1997 | 7 years | +0.0% |
| 1998 | 7 years | +0.0% |
| 1999 | 5 years | -28.6% |
| 2000 | 5 years | +0.0% |
| 2001 | 5 years | +0.0% |
| 2002 | 5 years | +0.0% |
| 2003 | 5 years | +0.0% |
| 2004 | 5 years | +0.0% |
| 2005 | 5 years | +0.0% |
| 2006 | 5 years | +0.0% |
| 2007 | 5 years | +0.0% |
| 2008 | 5 years | +0.0% |
| 2009 | 5 years | +0.0% |
| 2010 | 5 years | +0.0% |
| 2011 | 6 years | +20.0% |
| 2012 | 6 years | +0.0% |
| 2013 | 6 years | +0.0% |
| 2014 | 6 years | +0.0% |
| 2015 | 6 years | +0.0% |
| 2016 | 6 years | +0.0% |
| 2017 | 6 years | +0.0% |
| 2018 | 6 years | +0.0% |
| 2019 | 6 years | +0.0% |
| 2020 | 6 years | +0.0% |
| 2021 | 6 years | +0.0% |
| 2022 | 6 years | +0.0% |
| 2023 | 6 years | +0.0% |
| 2024 | 6 years | +0.0% |
| 2025 | 6 years | +0.0% |
Sao Tome and Principe compared with similar countries
- Sao Tome and Principe's 6 years is below the median for lower middle income countries, which is 7 years, 86% of the median. (47 countries reporting)
- Sao Tome and Principe's 6 years is above the median for Sub-Saharan Africa, which is 6 years, 1.0× the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 7 years | 7 years | 7 years | 10 |
| 1980s | 7 years | 7 years | 7 years | 10 |
| 1990s | 6.8 years | 5 years | 7 years | 10 |
| 2000s | 5 years | 5 years | 5 years | 10 |
| 2010s | 5.9 years | 5 years | 6 years | 10 |
| 2020s | 6 years | 6 years | 6 years | 6 |
Countries ranked near Sao Tome and Principe
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More education data for Sao Tome and Principe
- Teachers in secondary education, both sexes (number), gaps filled 936 (2016)
- Repeaters in primary education, all grades, both sexes (number), gaps 4,544 (2017)
- Enrolment in pre-primary education, male (number), gaps filled 4,458 (2016)
- Enrolment in pre-primary education, female (number), gaps filled 4,769 (2016)
- Secondary education, pupils, gaps filled 25,875 (2017)
- Primary education, duration (years), annual growth rate 0 % change on previous year (2025)
- Primary education, pupils, gaps filled 37,172 (2017)
- Primary education, pupils, annual growth rate 2.14 % change on previous year (2017)
- Primary education, pupils, per unit of GDP 0.0001 units per US$ of GDP (2017)
- Primary education, pupils, per capita 0.1796 units per person (2017)
Frequently asked questions
- What is secondary education, duration in Sao Tome and Principe?
- Secondary education, duration in Sao Tome and Principe was 6 years in 2025, according to Data API, UN Educational, Scientific and Cultural Organization (UNESCO).
- What is the highest secondary education, duration recorded in Sao Tome and Principe?
- The highest recorded value was 7 years in 1970.
- What is the lowest secondary education, duration recorded in Sao Tome and Principe?
- The lowest recorded value was 5 years in 1999.
- How does Sao Tome and Principe rank for secondary education, duration?
- Sao Tome and Principe ranks 91st out of 209 countries with data for 2025.
- Is secondary education, duration rising or falling in Sao Tome and Principe?
- Over the last ten years it is unchanged. The long-run trend across the full record is falling.
- Where does this Sao Tome and Principe data come from?
- The figures come from Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as part of Secondary education, duration (years). Statizoid updates them automatically from the source API.
Download this data
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About this data
Secondary duration refers to the number of grades (years) in secondary school.