Official entrance age to upper secondary education in Sao Tome and Principe
Sao Tome and Principe: Official entrance age to upper secondary education was 15 years in 2025. ▬ Flat
Latest (2025)
15 years
Change on year
unchanged
World rank
65th
of 221 countries
All-time high
16 years
in 1988
All-time low
15 years
in 1970
Years of data
56
1970–2025
Official entrance age to upper secondary education in Sao Tome and Principe, 1970–2025
Source: UNESCO Institute for Statistics. Measured in years.
Analysis
The most recent figure for official entrance age to upper secondary education in Sao Tome and Principe is 15 years, measured in 2025. That is the lowest value across all 56 years on record.
The figure is unchanged over ten years.
Over the whole period, official entrance age to upper secondary education in Sao Tome and Principe peaked at 16 years in 1988 and was at its lowest, 15 years, in 1970.
That places Sao Tome and Principe 65th out of 221 countries with data for 2025, putting it in the middle of the range.
Official entrance age to upper secondary education in Sao Tome and Principe, year by year
| Year | years | Change |
|---|---|---|
| 1970 | 15 years | — |
| 1971 | 15 years | +0.0% |
| 1972 | 15 years | +0.0% |
| 1973 | 15 years | +0.0% |
| 1974 | 15 years | +0.0% |
| 1975 | 15 years | +0.0% |
| 1976 | 15 years | +0.0% |
| 1977 | 15 years | +0.0% |
| 1978 | 15 years | +0.0% |
| 1979 | 15 years | +0.0% |
| 1980 | 15 years | +0.0% |
| 1981 | 15 years | +0.0% |
| 1982 | 15 years | +0.0% |
| 1983 | 15 years | +0.0% |
| 1984 | 15 years | +0.0% |
| 1985 | 15 years | +0.0% |
| 1986 | 15 years | +0.0% |
| 1987 | 15 years | +0.0% |
| 1988 | 16 years | +6.7% |
| 1989 | 16 years | +0.0% |
| 1990 | 16 years | +0.0% |
| 1991 | 16 years | +0.0% |
| 1992 | 16 years | +0.0% |
| 1993 | 16 years | +0.0% |
| 1994 | 16 years | +0.0% |
| 1995 | 16 years | +0.0% |
| 1996 | 16 years | +0.0% |
| 1997 | 16 years | +0.0% |
| 1998 | 16 years | +0.0% |
| 1999 | 15 years | -6.2% |
| 2000 | 15 years | +0.0% |
| 2001 | 15 years | +0.0% |
| 2002 | 15 years | +0.0% |
| 2003 | 15 years | +0.0% |
| 2004 | 15 years | +0.0% |
| 2005 | 15 years | +0.0% |
| 2006 | 15 years | +0.0% |
| 2007 | 15 years | +0.0% |
| 2008 | 15 years | +0.0% |
| 2009 | 15 years | +0.0% |
| 2010 | 15 years | +0.0% |
| 2011 | 15 years | +0.0% |
| 2012 | 15 years | +0.0% |
| 2013 | 15 years | +0.0% |
| 2014 | 15 years | +0.0% |
| 2015 | 15 years | +0.0% |
| 2016 | 15 years | +0.0% |
| 2017 | 15 years | +0.0% |
| 2018 | 15 years | +0.0% |
| 2019 | 15 years | +0.0% |
| 2020 | 15 years | +0.0% |
| 2021 | 15 years | +0.0% |
| 2022 | 15 years | +0.0% |
| 2023 | 15 years | +0.0% |
| 2024 | 15 years | +0.0% |
| 2025 | 15 years | +0.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 15 years | 15 years | 15 years | 10 |
| 1980s | 15.2 years | 15 years | 16 years | 10 |
| 1990s | 15.9 years | 15 years | 16 years | 10 |
| 2000s | 15 years | 15 years | 15 years | 10 |
| 2010s | 15 years | 15 years | 15 years | 10 |
| 2020s | 15 years | 15 years | 15 years | 6 |
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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 official entrance age to upper secondary education in Sao Tome and Principe?
- Official entrance age to upper secondary education in Sao Tome and Principe was 15 years in 2025, according to UNESCO Institute for Statistics.
- What is the highest official entrance age to upper secondary education recorded in Sao Tome and Principe?
- The highest recorded value was 16 years in 1988.
- What is the lowest official entrance age to upper secondary education recorded in Sao Tome and Principe?
- The lowest recorded value was 15 years in 1970.
- How does Sao Tome and Principe rank for official entrance age to upper secondary education?
- Sao Tome and Principe ranks 65th out of 221 countries with data for 2025.
- Is official entrance age to upper secondary education 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 flat.
- Where does this Sao Tome and Principe data come from?
- The figures come from UNESCO Institute for Statistics, published as part of Official entrance age to upper secondary education (years). Statizoid updates them automatically from the source API.
Download this data
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About this data
February 2026 Data Release