Pupil-teacher ratio, primary in OECD members

OECD members: Pupil-teacher ratio, primary was 15.32 in 2018. ▼ Falling

Latest (2018)
15.32
Change on year
down 0.1%
Rank
36th
of 43 groups
All-time high
20.75
in 1971
All-time low
15.32
in 2018
Years of data
49
1970–2018

Pupil-teacher ratio, primary in OECD members, 1970–2018

05101520197019942018

Source: Stat Bulk Data Download Service, UN Educational, Scientific and Cultural Organization (UNESCO).

Analysis

OECD members recorded 15.32 for pupil-teacher ratio, primary in 2018. That is the lowest value across all 49 years on record.

That represents a change of down 0.1% on the previous year and down 5.3% over ten years.

Over the whole period, pupil-teacher ratio, primary in OECD members peaked at 20.75 in 1971 and was at its lowest, 15.32, in 2018.

That places OECD members 36th out of 43 groups with data for 2018, putting it in the bottom quarter.

The long-run direction has been consistently falling across the 49 years of available data.

Pupil-teacher ratio, primary in OECD members, year by year

Annual values for Pupil-teacher ratio, primary in OECD members, 1970 to 2018.
Year Value Change
1970 20.61 —
1971 20.75 +0.7%
1972 20.66 -0.4%
1973 20.53 -0.7%
1974 20.49 -0.2%
1975 20.48 -0.0%
1976 20.54 +0.3%
1977 20.47 -0.4%
1978 20.43 -0.2%
1979 20.46 +0.1%
1980 20.15 -1.5%
1981 20.06 -0.5%
1982 19.93 -0.6%
1983 19.85 -0.4%
1984 19.77 -0.4%
1985 19.56 -1.1%
1986 19.36 -1.0%
1987 19.33 -0.2%
1988 19.19 -0.7%
1989 19.04 -0.8%
1990 18.91 -0.7%
1991 18.73 -1.0%
1992 18.61 -0.7%
1993 18.46 -0.8%
1994 18.1 -1.9%
1995 18.17 +0.4%
1996 18.1 -0.4%
1997 17.98 -0.7%
1998 18.05 +0.4%
1999 17.85 -1.1%
2000 17.52 -1.8%
2001 17.5 -0.1%
2002 17.2 -1.7%
2003 17.14 -0.4%
2004 16.93 -1.2%
2005 16.71 -1.3%
2006 16.5 -1.3%
2007 16.31 -1.1%
2008 16.17 -0.8%
2009 16.1 -0.4%
2010 15.85 -1.6%
2011 15.96 +0.7%
2012 16 +0.2%
2013 15.96 -0.2%
2014 15.86 -0.6%
2015 15.65 -1.3%
2016 15.41 -1.5%
2017 15.33 -0.5%
2018 15.32 -0.1%

Averages by decade

DecadeAverage LowestHighest Years
1970s 20.54 20.43 20.75 10
1980s 19.63 19.04 20.15 10
1990s 18.29 17.85 18.91 10
2000s 16.81 16.1 17.52 10
2010s 15.71 15.32 16 9

Countries ranked near OECD members

  1. 33 Somalia 35.52 compare
  2. 34 Bhutan 34.67 compare
  3. 35 Mauritania 34.28 compare
  4. 36 Haiti 33.41 compare
  5. 37 Democratic Republic of Congo 33.2 compare
  6. 38 Lesotho 32.95 compare
  7. 39 India 32.75 compare

See the full ranking of 242 places →

More education data for OECD members

All data for OECD members →

Frequently asked questions

What is pupil-teacher ratio, primary in OECD members?
Pupil-teacher ratio, primary in OECD members was 15.32 in 2018, according to Stat Bulk Data Download Service, UN Educational, Scientific and Cultural Organization (UNESCO).
What is the highest pupil-teacher ratio, primary recorded in OECD members?
The highest recorded value was 20.75 in 1971.
What is the lowest pupil-teacher ratio, primary recorded in OECD members?
The lowest recorded value was 15.32 in 2018.
How does OECD members rank for pupil-teacher ratio, primary?
OECD members ranks 36th out of 43 groups with data for 2018.
Is pupil-teacher ratio, primary rising or falling in OECD members?
Over the last ten years it is down 5.3%. The long-run trend across the full record is falling.
Where does this OECD members data come from?
The figures come from Stat Bulk Data Download Service, UN Educational, Scientific and Cultural Organization (UNESCO), published as part of Pupil-teacher ratio, primary. Statizoid updates them automatically from the source API.

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Pupil-teacher ratio, primary in OECD members. Statizoid, drawing on Stat Bulk Data Download Service, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 14 November 2026, from https://education.statizoid.com/stat/pupil-teacher-ratio-primary/oecd-members/

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About this data

Indicator
Pupil-teacher ratio, primary
Source
Stat Bulk Data Download Service, UN Educational, Scientific and Cultural Organization (UNESCO)
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
242 places, 8,053 data points, 1970–2019
Last refreshed

Primary school pupil-teacher ratio is the average number of pupils per teacher in primary school.