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

0 years, with Democratic Republic of Congo ahead.

How many years of comparable data are there for Democratic Republic of Congo 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.

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

Democratic Republic of Congo

6 years

in 2025

Sao Tome and Principe

6 years

in 2025

Democratic Republic of Congo rank

91st

Sao Tome and Principe rank

91st

Secondary education, duration over time

Democratic Republic of Congo
Sao Tome and Principe

How they compare

Democratic Republic of Congo 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.

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

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

Head to head by decade

Decade	Democratic Republic of Congo	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	Democratic Republic of Congo
2010s	6 years	5.9 years	0.1 years	Democratic Republic of Congo
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, Democratic Republic of Congo or Sao Tome and Principe?: Democratic Republic of Congo, at 6 years against 6 years in Sao Tome and Principe as of 2025.
What is the difference in secondary education, duration between Democratic Republic of Congo and Sao Tome and Principe?: 0 years, with Democratic Republic of Congo ahead.
How many years of comparable data are there for Democratic Republic of Congo and Sao Tome and Principe?: 56 years are reported by both, from 1970 to 2025.
How do Democratic Republic of Congo and Sao Tome and Principe rank globally for secondary education, duration?: Democratic Republic of Congo 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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Democratic Republic of Congo vs Sao Tome and Principe: Secondary education, duration. Statizoid, drawing on Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 28 August 2026, from https://education.statizoid.com/compare/secondary-education-duration-years/congo-dem-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.