Educational attainment: at least some primary (ISCED 1), population in Tonga

Tonga: Educational attainment: at least some primary (ISCED 1), population was 98.6% in 2023. ▲ Rising

Latest (2023)
98.6%
Change on year
down 1.4%
World rank
51st
of 136 countries
All-time high
100.0%
in 2021
All-time low
90.2%
in 1986
Years of data
8
1986–2023

Educational attainment: at least some primary (ISCED 1), population in Tonga, 1986–2023

0204060801001986200420231986: 90.2 %2006: 98.6 %2011: 99.2 %2016: 97.7 %2018: 99.6 %2019: 99.2 %2021: 100 %2023: 98.6 %

Source: UNESCO Institute for Statistics. Measured in %.

Analysis

Tonga recorded 98.6% for educational attainment: at least some primary (isced 1), population in 2023.

That represents a change of down 1.4% on the previous year and down 0.6% over ten years.

Over the whole period, educational attainment: at least some primary (isced 1), population in Tonga peaked at 100.0% in 2021 and was at its lowest, 90.2%, in 1986.

Tonga ranks 51st of 136 countries on this measure, in the middle of the range.

Educational attainment: at least some primary (ISCED 1), population in Tonga, year by year

Annual values for Educational attainment: at least some primary (ISCED 1), population 25+ years, both sexes (%) in Tonga, 1986 to 2023.
Year % Change
1986 90.2%
2006 98.6% +9.3%
2011 99.2% +0.6%
2016 97.7% -1.5%
2018 99.6% +1.9%
2019 99.2% -0.4%
2021 100.0% +0.9%
2023 98.6% -1.4%

Averages by decade

DecadeAverage LowestHighest Years
1980s 90.2% 90.2% 90.2% 1
2000s 98.6% 98.6% 98.6% 1
2010s 98.9% 97.7% 99.6% 4
2020s 99.3% 98.6% 100.0% 2

Countries ranked near Tonga

  1. 48 Chile 98.8% compare
  2. 49 Trinidad and Tobago 98.8% compare
  3. 50 Bahamas 98.6% compare
  4. 52 Montenegro 98.6% compare
  5. 53 Saint Lucia 98.5% compare
  6. 54 United Arab Emirates 98.3% compare

See the full ranking of 137 places →

More education data for Tonga

All data for Tonga →

Frequently asked questions

What is educational attainment: at least some primary (isced 1), population in Tonga?
Educational attainment: at least some primary (isced 1), population in Tonga was 98.6% in 2023, according to UNESCO Institute for Statistics.
What is the highest educational attainment: at least some primary (isced 1), population recorded in Tonga?
The highest recorded value was 100.0% in 2021.
What is the lowest educational attainment: at least some primary (isced 1), population recorded in Tonga?
The lowest recorded value was 90.2% in 1986.
How does Tonga rank for educational attainment: at least some primary (isced 1), population?
Tonga ranks 51st out of 136 countries with data for 2023.
Is educational attainment: at least some primary (isced 1), population rising or falling in Tonga?
Over the last ten years it is down 0.6%. The long-run trend across the full record is rising.
Where does this Tonga data come from?
The figures come from UNESCO Institute for Statistics, published as part of Educational attainment: at least some primary (ISCED 1), population 25+ years, both sexes (%). Statizoid updates them automatically from the source API.

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Educational attainment: at least some primary (ISCED 1), population in Tonga. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 29 August 2026, from https://education.statizoid.com/stat/educational-attainment-at-least-some-primary-isced-1-population-25-years-both-sexes/tonga/

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About this data

Indicator
Educational attainment: at least some primary (ISCED 1), population 25+ years, both sexes (%)
Unit
%
Source
UNESCO Institute for Statistics
Licence
CC BY-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
137 places, 1,785 data points, 1970–2024
Last refreshed

February 2026 Data Release