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Education and science ยท ranked by Duration of pre-primary education

Countries with the longest pre-primary education

50 ranked ยท updated 2026-11-02
Number oneBulgaria4 years
Ranking by Duration of pre-primary education
#NameDuration of pre-primary educationChange
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Bulgaria
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History

How the top 10 has moved

Positions of today's top 10 across every published snapshot.

History appears once this ranking has at least two published snapshots.

About this ranking

Countries with the longest pre-primary education, explained

Countries with the longest pre-primary education is a live ranking of the top 50 entries in education and science by Duration of pre-primary education, built from public data published by Our World in Data. It was last refreshed on 2026-11-02. This is the first published snapshot; from the next refresh onwards the page will also show movers, new entries and a rank history chart.

Bulgaria currently holds #1 with 4 years. Croatia is second with 4 years. Estonia completes the top three with 4 years. Together the top three account for about 30% of the combined top-10 total, which gives a quick sense of how concentrated this ranking is.

How it is measured: The theoretical duration of pre-primary education in years. Our World in Data chart "duration-of-pre-primary-education" (column theoretical_duration_of_pre_primary_education__years); most recent year per country within the last five years of data, regional aggregates excluded. Caveat: Years differ by country; the chart page documents the original source and its limitations. Data from Our World in Data (CC BY 4.0) and the sources it cites. The full top 50 is on this page, with positions 11 to 50 one click away, and each entry links to its own profile showing every ranking it appears in.

Use this page to check who is number one right now, compare any two entries head to head, or test yourself with the quiz, which asks you to name all ten in three minutes. Year-end archives are available for 2026, freezing the ranking as it stood at the close of each year. Top10Earth never estimates or edits a value: each number is fetched from its source, hashed, stored and ranked by software, then checked by a quality gate before it is published. If a refresh fails the gate, the previous snapshot stays live and the problem is reviewed by a person.

Frequently asked questions

Who is #1 in Countries with the longest pre-primary education?
Bulgaria is #1 with 4 years, as of 2026-11-02. Croatia is #2.
How is Countries with the longest pre-primary education ranked?
By Duration of pre-primary education. The theoretical duration of pre-primary education in years. Our World in Data chart "duration-of-pre-primary-education" (column theoretical_duration_of_pre_primary_education__years); most recent year per country within the last five years of data, regional aggregates excluded.
How often is this ranking updated?
It refreshes on a fixed schedule from Our World in Data. The latest snapshot was captured on 2026-11-02.
Where does the data come from?
Our World in Data. Data from Our World in Data (CC BY 4.0) and the sources it cites. The raw payload for every refresh is stored unchanged so any number can be traced back.