What is the difference in theoretical duration of pre-primary education between Republic of Korea and Puerto Rico?

0 years, with Republic of Korea ahead.

How many years of comparable data are there for Republic of Korea and Puerto Rico?

49 years are reported by both, from 1971 to 2019.

Where does this data come from?

UNESCO Institute for Statistics, published as Theoretical duration of pre-primary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Republic of Korea vs Puerto Rico: Theoretical duration of pre-primary education

Republic of Korea

3 years

in 2019

Puerto Rico

3 years

in 2019

Republic of Korea rank

21st

Puerto Rico rank

21st

Theoretical duration of pre-primary education over time

Republic of Korea
Puerto Rico

How they compare

Republic of Korea currently reports 3 years against 3 years in Puerto Rico, a difference of 0 years.

The two have swapped places 2 times across 49 shared years of data; in 1971 it was Puerto Rico ahead.

Republic of Korea ranks 21st and Puerto Rico ranks 21st of 210 countries.

Across the 5 decades both report, Republic of Korea averaged higher in 1 and Puerto Rico in 4.

Head to head by decade

Decade	Republic of Korea	Puerto Rico	Difference	Ahead
1970s	1 years	2 years	1 years	Puerto Rico
1980s	1 years	2 years	1 years	Puerto Rico
1990s	1 years	2 years	1 years	Puerto Rico
2000s	1 years	2 years	1 years	Puerto Rico
2010s	3 years	2.7 years	0.3 years	Republic of Korea

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of pre-primary education, Republic of Korea or Puerto Rico?: Republic of Korea, at 3 years against 3 years in Puerto Rico as of 2019.
What is the difference in theoretical duration of pre-primary education between Republic of Korea and Puerto Rico?: 0 years, with Republic of Korea ahead.
How many years of comparable data are there for Republic of Korea and Puerto Rico?: 49 years are reported by both, from 1971 to 2019.
How do Republic of Korea and Puerto Rico rank globally for theoretical duration of pre-primary education?: Republic of Korea ranks 21st and Puerto Rico ranks 21st of 210 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Theoretical duration of pre-primary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Republic of Korea vs Puerto Rico: Theoretical duration of pre-primary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 25 August 2026, from https://reference.statizoid.com/compare/theoretical-duration-of-pre-primary-education-years/korea-rep/puerto-rico-us/

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<a href="https://reference.statizoid.com/compare/theoretical-duration-of-pre-primary-education-years/korea-rep/puerto-rico-us/">Republic of Korea vs Puerto Rico: Theoretical duration of pre-primary education</a> — Statizoid

About this data

Indicator: Theoretical duration of pre-primary education (years)
Unit: years
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 210 places, 10,271 data points, 1970–2020
Last refreshed: 21 August 2026

Number of grades (years) in pre-primary education.