Educational attainment rate, completed lower secondary education or in Cook Islands

Cook Islands: Educational attainment rate, completed lower secondary education or was 90.9% in 2020. ▲ Rising

Latest (2020)
90.9%
Change on year
down 0.4%
World rank
1st
of 1 countries
All-time high
91.3%
in 2019
All-time low
13.3%
in 1971
Years of data
5
1971–2020

Educational attainment rate, completed lower secondary education or in Cook Islands, 1971–2020

204060801001971199520201971: 13.3 %2006: 59.6 %2016: 85.8 %2019: 91.3 %2020: 90.9 %

Source: UNESCO Institute for Statistics. Measured in %.

Analysis

In 2020, educational attainment rate, completed lower secondary education or in Cook Islands stood at 90.9%.

The figure is down 0.4% on the previous year and up 52.5% over ten years.

Over the whole period, educational attainment rate, completed lower secondary education or in Cook Islands peaked at 91.3% in 2019 and was at its lowest, 13.3%, in 1971.

Educational attainment rate, completed lower secondary education or in Cook Islands, year by year

Annual values for Educational attainment rate, completed lower secondary education or higher, population 25+ years, both sexes (%) in Cook Islands, 1971 to 2020.
Year % Change
1971 13.3%
2006 59.6% +348.2%
2016 85.8% +44.0%
2019 91.3% +6.4%
2020 90.9% -0.4%

Averages by decade

DecadeAverage LowestHighest Years
1970s 13.3% 13.3% 13.3% 1
2000s 59.6% 59.6% 59.6% 1
2010s 88.6% 85.8% 91.3% 2
2020s 90.9% 90.9% 90.9% 1

Countries ranked near Cook Islands

  1. 1 Uzbekistan 100.0% compare
  2. 2 Czechia 99.9% compare
  3. 3 United Kingdom of Great Britain and Northern Ireland 99.8% compare
  4. 4 Iceland 99.6% compare

See the full ranking of 135 places →

More education data for Cook Islands

All data for Cook Islands →

Frequently asked questions

What is educational attainment rate, completed lower secondary education or in Cook Islands?
Educational attainment rate, completed lower secondary education or in Cook Islands was 90.9% in 2020, according to UNESCO Institute for Statistics.
What is the highest educational attainment rate, completed lower secondary education or recorded in Cook Islands?
The highest recorded value was 91.3% in 2019.
What is the lowest educational attainment rate, completed lower secondary education or recorded in Cook Islands?
The lowest recorded value was 13.3% in 1971.
How does Cook Islands rank for educational attainment rate, completed lower secondary education or?
Cook Islands ranks 1st out of 1 countries with data for 2020.
Is educational attainment rate, completed lower secondary education or rising or falling in Cook Islands?
Over the last ten years it is up 52.5%. The long-run trend across the full record is rising.
Where does this Cook Islands data come from?
The figures come from UNESCO Institute for Statistics, published as part of Educational attainment rate, completed lower secondary education or higher, population 25+ years, both sexes (%). Statizoid updates them automatically from the source API.

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Educational attainment rate, completed lower secondary education or in Cook Islands. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 24 August 2026, from https://education.statizoid.com/stat/educational-attainment-rate-completed-lower-secondary-education-or-higher-population-25/cook-islands/

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About this data

Indicator
Educational attainment rate, completed lower secondary education or higher, population 25+ years, both sexes (%)
Unit
%
Source
UNESCO Institute for Statistics
Licence
CC BY-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
135 places, 1,912 data points, 1970–2024
Last refreshed

February 2026 Data Release