In 2018 Spain had the highest number of students per secondary class in Europe, with an average of 25.4 students in a class. Latvia had the lowest average of students in secondary level classes, at 15.8 students per class.
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OECD. (November 23, 2020). Average number of students per secondary level class in selected European countries in 2018 [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 22, 2026, from /statistics/1078267/students-per-class-in-europe/
OECD. "Average number of students per secondary level class in selected European countries in 2018." Chart. November 23, 2020. ÌÇÐÄÆÆ½â°æ. Accessed July 22, 2026. /statistics/1078267/students-per-class-in-europe/
OECD. (2020). Average number of students per secondary level class in selected European countries in 2018. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 22, 2026. /statistics/1078267/students-per-class-in-europe/
OECD. "Average Number of Students per Secondary Level Class in Selected European Countries in 2018." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 23 Nov 2020, /statistics/1078267/students-per-class-in-europe/
OECD, Average number of students per secondary level class in selected European countries in 2018 ÌÇÐÄÆÆ½â°æ, /statistics/1078267/students-per-class-in-europe/ (last visited July 22, 2026)
Average number of students per secondary level class in selected European countries in 2018 [Graph], OECD, November 23, 2020. [Online]. Available: /statistics/1078267/students-per-class-in-europe/