Which has higher duration of pre-primary education, Puerto Rico or Sao Tome and Principe?

Puerto Rico, at 3 years against 3 years in Sao Tome and Principe as of 2025.

What is the difference in duration of pre-primary education between Puerto Rico and Sao Tome and Principe?

0 years, with Puerto Rico ahead.

How many years of comparable data are there for Puerto Rico and Sao Tome and Principe?

55 years are reported by both, from 1971 to 2025.

Where does this data come from?

UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data, published as Duration of pre-primary education. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Puerto Rico vs Sao Tome and Principe: Duration of pre-primary education

Puerto Rico

3 years

in 2025

Sao Tome and Principe

3 years

in 2025

Puerto Rico rank

27th

Sao Tome and Principe rank

27th

Duration of pre-primary education over time

Puerto Rico
Sao Tome and Principe

How they compare

Puerto Rico currently reports 3 years against 3 years in Sao Tome and Principe, a difference of 0 years.

Across all 55 years both countries report, Sao Tome and Principe has been ahead every year.

Puerto Rico ranks 27th and Sao Tome and Principe ranks 27th of 223 countries.

Sao Tome and Principe has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	Puerto Rico	Sao Tome and Principe	Difference	Ahead
1970s	2 years	4 years	2 years	Sao Tome and Principe
1980s	2 years	4 years	2 years	Sao Tome and Principe
1990s	2 years	4 years	2 years	Sao Tome and Principe
2000s	2 years	3.6 years	1.6 years	Sao Tome and Principe
2010s	2.7 years	3 years	0.3 years	Sao Tome and Principe
2020s	3 years	3 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher duration of pre-primary education, Puerto Rico or Sao Tome and Principe?: Puerto Rico, at 3 years against 3 years in Sao Tome and Principe as of 2025.
What is the difference in duration of pre-primary education between Puerto Rico and Sao Tome and Principe?: 0 years, with Puerto Rico ahead.
How many years of comparable data are there for Puerto Rico and Sao Tome and Principe?: 55 years are reported by both, from 1971 to 2025.
How do Puerto Rico and Sao Tome and Principe rank globally for duration of pre-primary education?: Puerto Rico ranks 27th and Sao Tome and Principe ranks 27th of 223 countries.
Where does this data come from?: UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data, published as Duration of pre-primary education. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

Share, cite or embed this page

Cite this page

Puerto Rico vs Sao Tome and Principe: Duration of pre-primary education. Statizoid, drawing on UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data. Retrieved 10 September 2026, from https://education.statizoid.com/compare/duration-of-pre-primary-education/puerto-rico-us/sao-tome-and-principe/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under CC BY 4.0 (Our World in Data); please keep the attribution.

<a href="https://education.statizoid.com/compare/duration-of-pre-primary-education/puerto-rico-us/sao-tome-and-principe/">Puerto Rico vs Sao Tome and Principe: Duration of pre-primary education</a> — Statizoid

About this data

Indicator: Duration of pre-primary education
Unit: years
Source: UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 223 places, 12,020 data points, 1970–2025
Last refreshed: 28 August 2026

Average number of years that a child is expected to spend in pre-primary education, defined by country's official educational regulations or laws.