Comoros, Union of the vs United States: Theoretical duration of pre-primary education

Comoros, Union of the
3 years
in 2019
United States
3 years
in 2019
Comoros, Union of the rank
21st
United States rank
21st

Theoretical duration of pre-primary education over time

  • Comoros, Union of the
  • United States
0123197019942019

How they compare

Comoros, Union of the currently reports 3 years against 3 years in United States, a difference of 0 years.

Across all 50 years both countries report, United States has been ahead every year.

Comoros, Union of the ranks 21st and United States ranks 21st of 210 countries.

United States has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade Comoros, Union of the United States Difference Ahead
1970s 2 years 3 years 1 years United States
1980s 2 years 3 years 1 years United States
1990s 2.8 years 3 years 0.2 years United States
2000s 3 years 3 years 0 years
2010s 3 years 3 years 0 years

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of pre-primary education, Comoros, Union of the or United States?
Comoros, Union of the, at 3 years against 3 years in United States as of 2019.
What is the difference in theoretical duration of pre-primary education between Comoros, Union of the and United States?
0 years, with Comoros, Union of the ahead.
How many years of comparable data are there for Comoros, Union of the and United States?
50 years are reported by both, from 1970 to 2019.
How do Comoros, Union of the and United States rank globally for theoretical duration of pre-primary education?
Comoros, Union of the ranks 21st and United States 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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Comoros, Union of the vs United States: Theoretical duration of pre-primary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 18 August 2026, from https://reference.statizoid.com/compare/theoretical-duration-of-pre-primary-education-years/comoros/united-states/

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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

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