Official entrance age to upper secondary education in Tonga

Tonga: Official entrance age to upper secondary education was 17 years in 2020. ▬ Flat

Latest (2020)
17 years
Change on year
unchanged
World rank
2nd
of 209 countries
All-time high
17 years
in 2012
All-time low
15 years
in 1984
Years of data
51
1970–2020

Official entrance age to upper secondary education in Tonga, 1970–2020

051015197019952020

Source: UNESCO Institute for Statistics. Measured in years.

Analysis

In 2020, official entrance age to upper secondary education in Tonga stood at 17 years. That is the highest value across all 51 years on record.

Compared with earlier readings it is up 13.3% over ten years.

Over the whole period, official entrance age to upper secondary education in Tonga peaked at 17 years in 2012 and was at its lowest, 15 years, in 1984.

That places Tonga 2nd out of 209 countries with data for 2020, putting it in the top 10%.

Official entrance age to upper secondary education in Tonga, year by year

Annual values for Official entrance age to upper secondary education (years) in Tonga, 1970 to 2020.
Year years Change
1970 16 years
1971 16 years +0.0%
1972 16 years +0.0%
1973 16 years +0.0%
1974 16 years +0.0%
1975 16 years +0.0%
1976 16 years +0.0%
1977 16 years +0.0%
1978 16 years +0.0%
1979 16 years +0.0%
1980 16 years +0.0%
1981 16 years +0.0%
1982 16 years +0.0%
1983 16 years +0.0%
1984 15 years -6.2%
1985 15 years +0.0%
1986 15 years +0.0%
1987 15 years +0.0%
1988 15 years +0.0%
1989 15 years +0.0%
1990 15 years +0.0%
1991 15 years +0.0%
1992 15 years +0.0%
1993 15 years +0.0%
1994 15 years +0.0%
1995 15 years +0.0%
1996 15 years +0.0%
1997 15 years +0.0%
1998 15 years +0.0%
1999 15 years +0.0%
2000 15 years +0.0%
2001 15 years +0.0%
2002 15 years +0.0%
2003 15 years +0.0%
2004 15 years +0.0%
2005 15 years +0.0%
2006 15 years +0.0%
2007 15 years +0.0%
2008 15 years +0.0%
2009 15 years +0.0%
2010 15 years +0.0%
2011 15 years +0.0%
2012 17 years +13.3%
2013 17 years +0.0%
2014 17 years +0.0%
2015 17 years +0.0%
2016 17 years +0.0%
2017 17 years +0.0%
2018 17 years +0.0%
2019 17 years +0.0%
2020 17 years +0.0%

Averages by decade

DecadeAverage LowestHighest Years
1970s 16 years 16 years 16 years 10
1980s 15.4 years 15 years 16 years 10
1990s 15 years 15 years 15 years 10
2000s 15 years 15 years 15 years 10
2010s 16.6 years 15 years 17 years 10
2020s 17 years 17 years 17 years 1

Countries ranked near Tonga

  1. 1 Tanzania, United Republic of 18 years compare
  2. 2 Bhutan 17 years compare
  3. 2 Burundi 17 years compare
  4. 2 Equatorial Guinea 17 years compare
  5. 2 Ethiopia 17 years compare
  6. 2 Guinea 17 years compare
  7. 2 Lithuania 17 years compare
  8. 2 Namibia 17 years compare
  9. 2 Niger 17 years compare
  10. 2 Uganda 17 years compare

See the full ranking of 209 places →

More education data for Tonga

All data for Tonga →

Frequently asked questions

What is official entrance age to upper secondary education in Tonga?
Official entrance age to upper secondary education in Tonga was 17 years in 2020, according to UNESCO Institute for Statistics.
What is the highest official entrance age to upper secondary education recorded in Tonga?
The highest recorded value was 17 years in 2012.
What is the lowest official entrance age to upper secondary education recorded in Tonga?
The lowest recorded value was 15 years in 1984.
How does Tonga rank for official entrance age to upper secondary education?
Tonga ranks 2nd out of 209 countries with data for 2020.
Is official entrance age to upper secondary education rising or falling in Tonga?
Over the last ten years it is up 13.3%. The long-run trend across the full record is flat.
Where does this Tonga data come from?
The figures come from UNESCO Institute for Statistics, published as part of Official entrance age to upper secondary education (years). Statizoid updates them automatically from the source API.

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Official entrance age to upper secondary education in Tonga. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 26 August 2026, from https://education.statizoid.com/stat/official-entrance-age-to-upper-secondary-education-years/tonga/

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About this data

Indicator
Official entrance age to upper secondary education (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
209 places, 10,366 data points, 1970–2020
Last refreshed

Age at which students would enter upper secondary education, assuming they had started at the official entrance age for the lowest level of education, had studied full-time throughout and had progressed through the system without repeating or skipping a grade.