Which has higher secondary education, duration, Republic of Korea or Sao Tome and Principe?

Republic of Korea, at 6 years against 6 years in Sao Tome and Principe as of 2025.

What is the difference in secondary education, duration between Republic of Korea and Sao Tome and Principe?

0 years, with Republic of Korea ahead.

How many years of comparable data are there for Republic of Korea and Sao Tome and Principe?

56 years are reported by both, from 1970 to 2025.

Where does this data come from?

Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Secondary education, duration (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Republic of Korea vs Sao Tome and Principe: Secondary education, duration

Republic of Korea

6 years

in 2025

Sao Tome and Principe

6 years

in 2025

Republic of Korea rank

91st

Sao Tome and Principe rank

91st

Secondary education, duration over time

Republic of Korea
Sao Tome and Principe

How they compare

Republic of Korea currently reports 6 years against 6 years in Sao Tome and Principe, a difference of 0 years.

The two have swapped places 2 times across 56 shared years of data; in 1970 it was Sao Tome and Principe ahead.

Republic of Korea ranks 91st and Sao Tome and Principe ranks 91st of 209 countries.

Across the 6 decades both report, Republic of Korea averaged higher in 2 and Sao Tome and Principe in 3.

Head to head by decade

Decade	Republic of Korea	Sao Tome and Principe	Difference	Ahead
1970s	6 years	7 years	1 years	Sao Tome and Principe
1980s	6 years	7 years	1 years	Sao Tome and Principe
1990s	6 years	6.8 years	0.8 years	Sao Tome and Principe
2000s	6 years	5 years	1 years	Republic of Korea
2010s	6 years	5.9 years	0.1 years	Republic of Korea
2020s	6 years	6 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher secondary education, duration, Republic of Korea or Sao Tome and Principe?: Republic of Korea, at 6 years against 6 years in Sao Tome and Principe as of 2025.
What is the difference in secondary education, duration between Republic of Korea and Sao Tome and Principe?: 0 years, with Republic of Korea ahead.
How many years of comparable data are there for Republic of Korea and Sao Tome and Principe?: 56 years are reported by both, from 1970 to 2025.
How do Republic of Korea and Sao Tome and Principe rank globally for secondary education, duration?: Republic of Korea ranks 91st and Sao Tome and Principe ranks 91st of 209 countries.
Where does this data come from?: Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Secondary education, duration (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Republic of Korea vs Sao Tome and Principe: Secondary education, duration. Statizoid, drawing on Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 30 August 2026, from https://education.statizoid.com/compare/secondary-education-duration-years/korea-rep/sao-tome-and-principe/

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About this data

Indicator: Secondary education, duration (years)
Unit: years
Source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 255 places, 13,986 data points, 1970–2025
Last refreshed: 20 August 2026

Secondary duration refers to the number of grades (years) in secondary school.