How many years of comparable data are there for Mongolia and United States?

51 years are reported by both, from 1970 to 2020.

Where does this data come from?

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

Mongolia vs United States: Theoretical duration of upper secondary education

Mongolia

3 years

in 2020

United States

3 years

in 2020

Mongolia rank

52nd

United States rank

52nd

Theoretical duration of upper secondary education over time

Mongolia
United States

How they compare

Mongolia currently reports 3 years against 3 years in United States, a difference of 0 years.

Across all 51 years both countries report, United States has been ahead every year.

Mongolia ranks 52nd and United States ranks 52nd of 209 countries.

United States has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	Mongolia	United States	Difference	Ahead
1970s	2 years	3 years	1 years	United States
1980s	2 years	3 years	1 years	United States
1990s	2 years	3 years	1 years	United States
2000s	2 years	3 years	1 years	United States
2010s	2.9 years	3 years	0.1 years	United States
2020s	3 years	3 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of upper secondary education, Mongolia or United States?: Mongolia, at 3 years against 3 years in United States as of 2020.
What is the difference in theoretical duration of upper secondary education between Mongolia and United States?: 0 years, with Mongolia ahead.
How many years of comparable data are there for Mongolia and United States?: 51 years are reported by both, from 1970 to 2020.
How do Mongolia and United States rank globally for theoretical duration of upper secondary education?: Mongolia ranks 52nd and United States ranks 52nd of 209 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Theoretical duration of upper secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Mongolia vs United States: Theoretical duration of upper secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 30 August 2026, from https://education.statizoid.com/compare/theoretical-duration-of-upper-secondary-education-years/mongolia/united-states/

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About this data

Indicator: Theoretical duration of upper secondary education (years)
Unit: years
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 209 places, 10,366 data points, 1970–2020
Last refreshed: 21 August 2026

Number of grades (years) in upper secondary education.