Table 601.50.

Pupil/teacher ratios in public and private elementary and secondary schools, by level of education and country: 2015 through 2019

Country	Elementary school (primary)										Junior high school (lower secondary)										Senior high school (upper secondary)
	2015		2016		2017		2018		2019		2015		2016		2017		2018		2019		2015		2016		2017		2018		2019
1	2		3		4		5		6		7		8		9		10		11		12		13		14		15		16
OECD average1	15.3		15.1		14.9		14.6		14.5		13.2		13.0		13.0		13.0		13.1		13.7		13.1		13.3		13.0		13.0
Australia	15.4		15.2		15.1		14.9		15.1		---		---		---		---		---		12.3	2,3	12.1	2,3	12.0	2,3	11.9	2,3	12.1	2,3
Austria	11.8		11.6		11.3		11.6		12.0		8.7		8.6		8.6		8.5		8.5		10.1		10.1		10.1		10.1		10.1
Belgium	12.8		12.8		12.9		12.8		12.7		9.1		9.0		8.9		8.9		8.9		9.9		9.8		9.7		9.6		9.5
Canada	17.0	4,5	16.9	4,5	16.2	4,5	16.7	4,5	16.4	4,5	---		---		---		---		---		13.0		12.2		13.1		13.3		13.0
Chile	20.9		20.3		19.8		19.4		18.6		21.9		21.1		20.4		20.2		19.2		23.0		22.1		21.2		20.6		20.0
Colombia	24.2		24.2		23.6		23.3		23.1		26.7		26.2		26.4		26.3		26.9		25.9		25.6		25.1		25.0		24.3
Costa Rica	12.7		12.0		11.6		11.6		11.7		14.0		12.8		13.7		13.3		13.7		13.9		12.6		13.4		13.0		13.6
Czech Republic	19.0		19.1		19.1		19.2		18.7		11.8		12.0		12.1		12.5		12.6		11.1		11.0		11.1		11.4		10.5
Denmark	---		---		---		11.9		11.9		---		---		---		10.9		10.7		---		---		---		11.7		11.5
Estonia	13.3		13.2		13.2		13.1		12.9		9.5		10.1		10.0		10.1		10.0		15.2	6	15.3	6	15.6	6	15.7	6	15.4	6
Finland	13.6		13.3		13.7		13.6		13.5		9.0		9.0		8.9		8.9		8.8		16.5		17.2		18.2		18.9		17.5
France	19.7		19.7		19.5		19.2		18.8		14.4		14.5		14.4		14.4		14.5		11.1		11.4		11.5		11.4		11.3
Germany	15.4		15.3		15.4		15.3		15.1		13.3		13.2		13.2		13.0		12.9		13.0		12.9		12.7		12.6		12.4
Greece	---		---		---		9.2		8.7		---		---		---		7.9		7.9		---		---		---		9.4		9.8
Hungary	11.2		11.0		10.8		10.2		10.0		10.6		10.3		10.4		11.0		11.3		11.5		11.1		11.5		11.9		11.5
Iceland	10.7		10.8		11.1		11.0		10.7		10.5		10.2		10.1		10.1		9.9		---		---		---		---		---
Ireland	16.2	7	16.0	7	15.7		15.3		15.1		---		---		---		---		---		13.9	7	13.8	7	13.4		12.9		12.8
Israel	15.4		15.4		15.2		15.4		15.1		11.8		11.8		11.3		11.1		12.9		10.8	7	10.9	7	9.6		9.9		11.0	7
Italy	12.4		11.4		11.7		11.5		11.4		11.5		10.9		11.0		11.0		10.9		12.5		10.4		10.4	6	10.4	6	10.3	6
Japan	16.9		16.6		16.4		16.2		15.9		13.6		13.4		13.3		13.0		12.9		12.0	6	11.8	6	11.8	6	11.7	6	11.6	6
Korea, Republic of	16.8		16.5		16.4		16.5		16.6		15.7		14.7		14.0		13.5		13.0		14.1		13.8		13.2		12.2		11.4
Latvia	11.1		11.3		12.1		12.0		12.0		7.7		7.8		8.4		8.6		8.9		9.7		9.8		10.4		10.7		11.1
Lithuania	10.3		10.5		10.6		11.2		14.5		7.3		7.3		7.3		7.6		9.7		8.1		7.7		8.0		8.0		9.4
Luxembourg	10.7		10.5		9.0		9.0		9.0		11.0		10.7		10.9		10.7		---		10.8		9.0		9.2		8.6		9.2	2
Mexico	26.9		26.7		26.6		26.4		24.4		33.6		33.9		34.0		33.5		31.6		20.0		20.0		23.0		22.2		22.5
Netherlands	16.6		16.8		16.7		16.4		16.4		16.0		16.1		16.1		16.1		16.0		18.0		17.9		18.0		17.6		17.7
New Zealand	16.5		16.6		16.9		16.8		16.4		16.3		16.4		16.6		16.5		16.2		12.8		12.6		13.0		12.9		12.4
Norway	10.3		10.1		10.2		10.1		10.4		9.5		9.1		9.4		8.9		9.7		10.3		10.2		10.1		10.2		10.7
Poland	11.1		11.4		10.7		9.6		9.6		9.7		9.6		9.5		11.4		10.4		10.3		10.2		10.0		9.6		9.7
Portugal	13.7		13.1		12.7		12.4		12.3		10.0		9.8		9.8		9.4		9.1		9.7	6	9.6	6	9.2	6	9.0	6	9.2	6
Slovak Republic	17.2		17.1		17.4		17.5		17.4		11.6		12.3		12.4		12.5		12.7		13.5		13.5		13.6		13.5		13.4
Slovenia	15.9		14.3		14.5		10.3	5	10.6	5	8.5		6.1		6.0		---		---		13.4		14.2		14.1		13.7		14.0
Spain	13.7		13.6		13.6		13.6		13.6		11.9		11.7		11.8		11.9		11.7		11.1		10.7		10.7		10.5		10.4
Sweden	12.8		13.1		12.8		13.6		13.0		12.3		12.4		12.2		11.1		11.2		14.4		13.7		13.7		13.6		13.0
Switzerland	15.6	7	15.5	7	15.3		15.2		15.1		11.9	7	11.8	7	11.7		11.6		11.6		12.0	7	12.3	7	12.3	6	12.2	6	12.2	6
Turkey	18.4		17.7		17.0		17.2		17.5		16.8		15.1		16.5		15.9		15.3		14.1		12.7		12.9		12.3		11.5
United Kingdom	18.4	4	16.9		16.9		19.9		19.9		14.3		14.8		15.2		15.9		16.2		26.1		16.5		17.2		18.0	8	18.2	8
United States	15.4		15.2		15.2		15.2		15.2		15.4		15.3		15.3		15.2		15.2		15.4		15.5		15.4		15.1		15.1
Other reporting     countries
Brazil	24.8		24.4		24.3		23.9		23.9		25.0		24.9		25.0		24.9		24.8		23.6		24.1		24.1		23.7		22.8
Russian Federation	20.6		21.0		21.1		22.9		23.5		10.4	9	10.6	9	10.4	9	11.7	9	12.1	9	---		---		---		---		---

---Not available.

1 Refers 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.

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

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

4 Preprimary data are included with the elementary school data.

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

6 Includes data for part of the postsecondary nontertiary education.

7 Public institutions only.

8 Includes data for vocational programs at all levels.

9 Senior high school data are included with the junior high school data.

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). Some data have been revised from previously published figures.

SOURCE: Organization for Economic Cooperation and Development (OECD), Online Education Database, retrieved September 16, 2021, from https://stats.oecd.org/Index.aspx. (This table was prepared September 2021).