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Theoretical duration of primary education in Sao Tome and Principe

Sao Tome and Principe: Theoretical duration of primary education was 6 years in 2025. ▲ Rising

Latest (2025)
6 years
Change on year
unchanged
World rank
27th
of 218 countries
All-time high
6 years
in 1999
All-time low
4 years
in 1970
Years of data
56
1970–2025

Theoretical duration of primary education in Sao Tome and Principe, 1970–2025

0246197019972025

Source: UNESCO Institute for Statistics. Measured in years.

Analysis

The most recent figure for theoretical duration of primary education in Sao Tome and Principe is 6 years, measured in 2025. That is the highest value across all 56 years on record.

Compared with earlier readings it is unchanged over ten years.

Over the whole period, theoretical duration of primary education in Sao Tome and Principe peaked at 6 years in 1999 and was at its lowest, 4 years, in 1970.

Sao Tome and Principe ranks 27th of 218 countries on this measure, in the top quarter.

The long-run direction has been consistently rising across the 56 years of available data.

Theoretical duration of primary education in Sao Tome and Principe, year by year

Year years Change
1970 4 years —
1971 4 years +0.0%
1972 4 years +0.0%
1973 4 years +0.0%
1974 4 years +0.0%
1975 4 years +0.0%
1976 4 years +0.0%
1977 4 years +0.0%
1978 4 years +0.0%
1979 4 years +0.0%
1980 4 years +0.0%
1981 4 years +0.0%
1982 4 years +0.0%
1983 4 years +0.0%
1984 4 years +0.0%
1985 4 years +0.0%
1986 4 years +0.0%
1987 4 years +0.0%
1988 4 years +0.0%
1989 4 years +0.0%
1990 4 years +0.0%
1991 4 years +0.0%
1992 4 years +0.0%
1993 4 years +0.0%
1994 4 years +0.0%
1995 4 years +0.0%
1996 4 years +0.0%
1997 4 years +0.0%
1998 4 years +0.0%
1999 6 years +50.0%
2000 6 years +0.0%
2001 6 years +0.0%
2002 6 years +0.0%
2003 6 years +0.0%
2004 6 years +0.0%
2005 6 years +0.0%
2006 6 years +0.0%
2007 6 years +0.0%
2008 6 years +0.0%
2009 6 years +0.0%
2010 6 years +0.0%
2011 6 years +0.0%
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%

Averages by decade

DecadeAverage LowestHighest Years
1970s 4 years 4 years 4 years 10
1980s 4 years 4 years 4 years 10
1990s 4.2 years 4 years 6 years 10
2000s 6 years 6 years 6 years 10
2010s 6 years 6 years 6 years 10
2020s 6 years 6 years 6 years 6

Countries ranked near Sao Tome and Principe

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  28. 27 Cape Verde 6 years compare
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  35. 27 Ecuador 6 years compare
  36. 27 Egypt 6 years compare
  37. 27 Spain 6 years compare
  38. 27 Estonia 6 years compare
  39. 27 Ethiopia 6 years compare
  40. 27 Finland 6 years compare
  41. 27 Fiji 6 years compare
  42. 27 Micronesia, Federated States of 6 years compare
  43. 27 United Kingdom of Great Britain and Northern Ireland 6 years compare
  44. 27 Georgia 6 years compare
  45. 27 Ghana 6 years compare
  46. 27 Gibraltar 6 years compare
  47. 27 Guinea 6 years compare
  48. 27 Gambia 6 years compare
  49. 27 Guinea-Bissau 6 years compare
  50. 27 Equatorial Guinea 6 years compare
  51. 27 Greece 6 years compare
  52. 27 Guatemala 6 years compare
  53. 27 Guyana 6 years compare
  54. 27 Hong Kong, China 6 years compare
  55. 27 Honduras 6 years compare
  56. 27 Haiti 6 years compare
  57. 27 Indonesia 6 years compare
  58. 27 Iran, Islamic Republic of 6 years compare
  59. 27 Iraq 6 years compare
  60. 27 Israel 6 years compare
  61. 27 Jamaica 6 years compare
  62. 27 Jordan 6 years compare
  63. 27 Japan 6 years compare
  64. 27 Kenya 6 years compare
  65. 27 Cambodia 6 years compare
  66. 27 Kiribati 6 years compare
  67. 27 Republic of Korea 6 years compare
  68. 27 Lebanon 6 years compare
  69. 27 Liberia 6 years compare
  70. 27 Libya 6 years compare
  71. 27 Luxembourg 6 years compare
  72. 27 Latvia 6 years compare
  73. 27 Macau, China 6 years compare
  74. 27 Morocco 6 years compare
  75. 27 Maldives 6 years compare
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  77. 27 Marshall Islands 6 years compare
  78. 27 Mali 6 years compare
  79. 27 Malta 6 years compare
  80. 27 Mauritania 6 years compare
  81. 27 Mauritius 6 years compare
  82. 27 Malawi 6 years compare
  83. 27 Malaysia 6 years compare
  84. 27 Niger 6 years compare
  85. 27 Nigeria 6 years compare
  86. 27 Nicaragua 6 years compare
  87. 27 Netherlands 6 years compare
  88. 27 Naoero 6 years compare
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  91. 27 Peru 6 years compare
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  95. 27 Puerto Rico 6 years compare
  96. 27 Portugal 6 years compare
  97. 27 Paraguay 6 years compare
  98. 27 Qatar 6 years compare
  99. 27 Rwanda 6 years compare
  100. 27 Saudi Arabia 6 years compare
  101. 27 Sudan 6 years compare
  102. 27 Senegal 6 years compare
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  105. 27 Sierra Leone 6 years compare
  106. 27 El Salvador 6 years compare
  107. 27 South Sudan 6 years compare
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  114. 27 Turks and Caicos Islands 6 years compare
  115. 27 Chad 6 years compare
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  117. 27 Thailand 6 years compare
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  122. 27 Uruguay 6 years compare
  123. 27 United States of America 6 years compare
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  126. 27 Vanuatu 6 years compare
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See the full ranking of 224 places →

More education data for Sao Tome and Principe

All data for Sao Tome and Principe →

Frequently asked questions

What is theoretical duration of primary education in Sao Tome and Principe?
Theoretical duration of primary education in Sao Tome and Principe was 6 years in 2025, according to UNESCO Institute for Statistics.
What is the highest theoretical duration of primary education recorded in Sao Tome and Principe?
The highest recorded value was 6 years in 1999.
What is the lowest theoretical duration of primary education recorded in Sao Tome and Principe?
The lowest recorded value was 4 years in 1970.
How does Sao Tome and Principe rank for theoretical duration of primary education?
Sao Tome and Principe ranks 27th out of 218 countries with data for 2025.
Is theoretical duration of primary 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 rising.
Where does this Sao Tome and Principe data come from?
The figures come from UNESCO Institute for Statistics, published as part of Theoretical duration of primary education (years). Statizoid updates them automatically from the source API.

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Theoretical duration of primary education in Sao Tome and Principe. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 04 September 2026, from https://education.statizoid.com/stat/theoretical-duration-of-primary-education-years/sao-tome-and-principe/

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About this data

Indicator
Theoretical duration of primary education (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
224 places, 12,152 data points, 1970–2025
Last refreshed

February 2026 Data Release