Which has higher primary school starting age, Japan or Slovenia?

Japan, at 6 years against 6 years in Slovenia as of 2025.

How many years of comparable data are there for Japan and Slovenia?

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 Primary school starting age (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Japan vs Slovenia: Primary school starting age

Japan

6 years

in 2025

Slovenia

6 years

in 2025

Japan rank

33rd

Slovenia rank

33rd

Primary school starting age over time

Japan
Slovenia

How they compare

Japan currently reports 6 years against 6 years in Slovenia, a difference of 0 years.

Across all 56 years both countries report, Slovenia has been ahead every year.

Japan ranks 33rd and Slovenia ranks 33rd of 210 countries.

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

Head to head by decade

Decade	Japan	Slovenia	Difference	Ahead
1970s	6 years	7 years	1 years	Slovenia
1980s	6 years	7 years	1 years	Slovenia
1990s	6 years	6.9 years	0.9 years	Slovenia
2000s	6 years	6.4 years	0.4 years	Slovenia
2010s	6 years	6 years	0 years	—
2020s	6 years	6 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher primary school starting age, Japan or Slovenia?: Japan, at 6 years against 6 years in Slovenia as of 2025.
What is the difference in primary school starting age between Japan and Slovenia?: 0 years, with Japan ahead.
How many years of comparable data are there for Japan and Slovenia?: 56 years are reported by both, from 1970 to 2025.
How do Japan and Slovenia rank globally for primary school starting age?: Japan ranks 33rd and Slovenia ranks 33rd of 210 countries.
Where does this data come from?: Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Primary school starting age (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Japan vs Slovenia: Primary school starting age. Statizoid, drawing on Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 16 August 2026, from https://education.statizoid.com/compare/primary-school-starting-age-years/japan/slovenia/

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<a href="https://education.statizoid.com/compare/primary-school-starting-age-years/japan/slovenia/">Japan vs Slovenia: Primary school starting age</a> — Statizoid

About this data

Indicator: Primary school starting age (years)
Unit: years
Source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 210 places, 11,539 data points, 1970–2025
Last refreshed: 06 August 2026

Primary school starting age is the age at which students would enter primary education, assuming they had started at the official entrance age for the lowest level of education, had studied full-time throughout and had progressed through the system without repeating or skipping a grade.