Table 601.50.

Pupil/teacher ratios in public and private elementary and secondary schools, by level of education and country: 2016 through 2020

Country	Elementary school (primary)										Junior high school (lower secondary)										Senior high school (upper secondary)
	2016		2017		2018		2019		2020		2016		2017		2018		2019		2020		2016		2017		2018		2019		2020
1	2		3		4		5		6		7		8		9		10		11		12		13		14		15		16
OECD average1	14.9		14.8		14.7		14.5		14.4		12.9		13.0		12.8		13.1		13.2		13.2		13.2		13.0		13.0		12.9
Australia	15.2		15.1		14.9		15.1		14.8		---		---		---		---		---		12.1	2,3	12.0	2,3	11.9	2,3	12.1	2,3	12.1	2,3
Austria	11.6		11.3		11.6		12.0		12.2		8.6		8.6		8.5		8.5		8.6		10.1		10.1		10.1		10.1		9.9
Belgium	12.8		12.9		12.8		12.7		12.5		9.0		8.9		8.9		8.9		8.8		9.8		9.7		9.6		9.5		9.4
Canada	16.9	4,5	16.2	4,5	16.7	4,5	16.4	4,5	16.3	4,5	---		---		---		---		---		12.2		13.1		13.3		13.0		12.8
Chile	20.3		19.8		19.4		18.6		18.6		21.1		20.4		20.2		19.2		20.1		22.1		21.2		20.6		20.0		19.6
Colombia	24.2		23.6		23.3		23.1		23.8		26.2		26.4		26.3		26.9		28.2		25.6		25.1		25.0		24.3		22.0
Costa Rica	12.0		11.6		11.6		11.7		11.5		12.8		13.7		13.3		13.7		13.2		12.6		13.4		13.0		13.6		13.1
Czech Republic	19.1		19.1		19.2		18.7		18.0		12.0		12.1		12.5		12.6		12.6		11.0		11.1		11.4		10.5		10.3
Denmark	12.0		12.0		11.9		11.9		12.1		11.1		10.9		10.9		10.8		11.0		11.3		11.5		11.5		11.4		12.4
Estonia	13.2		13.2		13.1		12.9		12.5		10.1		10.0		10.1		10.0		10.0		15.0	6	15.6	6	15.7	6	15.4	6	15.4	6
Finland	13.3		13.7		13.6		13.5		13.1		9.0		8.9		8.9		8.8		8.6		17.2		18.2		18.9		17.5		17.3
France	19.6		19.4		19.1		18.7		18.4		14.5		14.4		14.4		14.5		14.6		11.2		11.3		11.2		11.2		11.3
Germany	15.3		15.4		15.3		15.1		14.9		13.2		13.2		13.0		12.9		12.8		12.9		12.7		12.6		12.4		12.2
Greece	---		---		9.2		8.7		8.4		---		---		7.9		7.9		8.0		---		---		9.4		9.8		9.2
Hungary	11.0		10.8		10.2		10.0		10.0		10.3		10.4		11.0		11.3		11.4		11.1		11.5		11.9		11.5		11.5
Iceland	10.8		11.1		11.0		10.7		10.5		10.2		10.1		10.1		9.9		10.0		---		---		---		---		---
Ireland	---		15.7		15.3		15.1		14.9		---		---		---		---		---		---		13.4		12.9		12.8		11.9
Israel	15.4		15.2		15.4		15.1		15.0		11.8		11.3		11.1		12.9		17.8		---		9.6		9.9		---		---
Italy	11.4		11.7		11.5		11.4		11.2		10.9		11.0		11.0		10.9		10.8		10.4		10.4	6	10.4	6	10.3	6	10.1	6
Japan	16.6		16.4		16.2		15.9		15.6		13.4		13.3		13.0		12.9		12.7		11.8	6	11.8	6	11.7	6	11.6	6	11.4	6
Korea, Republic of	16.5		16.4		16.5		16.6		16.3		14.7		14.0		13.5		13.0		13.1		13.8		13.2		12.2		11.4		10.9
Latvia	11.3		12.1		12.0		12.0		12.1		7.8		8.4		8.6		8.9		9.4		9.8		10.4		10.7		11.1		11.5
Lithuania	10.5		10.6		11.2		14.5		14.2		7.3		7.3		7.6		9.7		10.0		7.7		8.0		8.0		9.4		9.2
Luxembourg	10.5		9.0		9.0		9.0		8.9		10.7		10.9		10.7		---		---		9.7		9.9		9.5		9.2	2	8.7	2
Mexico	26.7		26.6		26.4		24.4		24.3		33.9		34.0		33.5		31.6		30.7		20.0		23.0		22.2		22.5		22.7
Netherlands	16.8		16.7		16.4		16.4		16.3		16.1		16.1		16.1		16.0		15.9		17.9		18.0		17.6		17.7		17.5
New Zealand	16.6		16.9		16.8		16.4		16.4		16.4		16.6		16.5		16.2		16.5		12.8		12.7		12.5		12.4		12.5
Norway	10.1		10.2		10.1		10.4		10.1		9.1		9.4		8.9		9.7		8.7		10.2		10.1		10.2		10.7		10.5
Poland	11.4		10.7		9.6		9.6		10.2		9.6		9.5		11.4		10.4		10.8		10.2		10.0		9.6		9.7		11.5
Portugal	13.1		12.7		12.4		12.3		12.1		9.8		9.8		9.4		9.1		8.8		9.6	6	9.2	6	9.0	6	9.2	6	8.9	6
Slovak Republic	17.1		17.4		17.5		17.4		17.5		12.3		12.4		12.5		12.7		12.8		13.5		13.6		13.5		13.4		13.4
Slovenia	14.3		14.5		14.3		10.6	5	10.3	5	6.1		6.0		6.1		---		---		14.2		14.1		14.2		14.0		13.6
Spain	13.6		13.6		13.6		13.6		13.3		11.7		11.8		11.9		11.7		11.5		10.7		10.7		10.5		10.4		10.4
Sweden	13.1		12.8		13.6		13.0		13.1		12.4		12.2		11.1		11.2		11.3		13.7		13.3		13.6		13.0		13.1
Switzerland	---		15.3		15.2		15.1		15.1		---		11.7		11.6		11.6		11.7		---		12.3	6	12.2	6	12.2	6	12.2	6
Türkiye	17.7		17.0		17.2		17.5		17.1		15.1		16.5		15.9		15.3		14.7		12.7		12.9		12.3		11.5		11.2
United Kingdom	16.9		16.9		19.9		19.9		19.6		14.8		15.2		15.9		16.2		16.7		16.5		17.2		18.0	7	18.2	7	18.5	7
United States	15.2		15.2		15.2		15.2		15.0		15.3		15.3		15.2		15.2		15.0		15.5		15.4		15.1		15.1		15.0
Other reporting    countries
Brazil	24.4		24.3		23.9		23.9		23.6		24.9		25.0		24.9		24.8		24.6		24.1		24.1		23.7		22.8		23.3
China	16.5		16.6		16.4		16.4		---		12.3		12.3		12.3		12.6		---		15.1		14.7		14.5		14.2		---

---Not available.

1Refers to the mean of the data values for all reporting Organization for Economic Cooperation and Development (OECD) countries, to which each country reporting data contributes equally. The average includes all current OECD countries for which a given year's data are available, even if they were not members of OECD in that year.

2Junior high school data are included with the senior high school data.

3Includes only general programs; data on vocational programs are not available.

4Preprimary data are included with the elementary school data.

5Junior high school data are included with the elementary school data.

6Includes data for part of the postsecondary nontertiary education.

7Includes data for vocational programs at all levels.

NOTE: The pupil/teacher ratio is the number of full-time-equivalent students divided by the number of full-time-equivalent teachers, including teachers for students with disabilities and other special teachers. All data in this table were calculated using International Standard Classification of Education (ISCED) 2011. In this table, elementary school corresponds to ISCED 2011 level 1 (U.S. grades 1 through 6), junior high school corresponds to ISCED 2011 level 2 (U.S. grades 7 through 9), and senior high school corresponds to ISCED 2011 level 3 (U.S. grades 10 through 12). Data are collected for the school year ending in the reported year for each country. For example, for reported year 2020, the reference period is school year 2019-2020 for Northern Hemisphere countries and 2020 for Southern Hemisphere countries. For more information on the school year reported by OECD countries, see Annex Table X1.3 here: https://stat.link/3ha7ok. Some data have been revised from previously published figures.

SOURCE: Organization for Economic Cooperation and Development (OECD), Online Education Database, retrieved October 6, 2022, from https://stats.oecd.org/Index.aspx. (This table was prepared October 2022).