Completion rate, upper secondary education … modelled data gender in Tonga
Tonga: Completion rate, upper secondary education … modelled data gender was 1.14 modelled data in 2025. ▲ Rising
Latest (2025)
1.14 modelled data
Change on year
down 0.1%
World rank
45th
of 164 countries
All-time high
1.15 modelled data
in 2020
All-time low
1.01 modelled data
in 1981
Years of data
45
1981–2025
Completion rate, upper secondary education, adjusted gender parity in Tonga, 1981–2025
Source: UNESCO Institute for Statistics. Measured in modelled data.
Analysis
In 2025, completion rate, upper secondary education, adjusted gender parity in Tonga stood at 1.14 modelled data.
The figure is down 0.1% on the previous year and up 0.2% over ten years.
Over the whole period, completion rate, upper secondary education, adjusted gender parity in Tonga peaked at 1.15 modelled data in 2020 and was at its lowest, 1.01 modelled data, in 1981.
That places Tonga 45th out of 164 countries with data for 2025, putting it in the middle of the range.
The long-run direction has been consistently rising across the 45 years of available data.
Completion rate, upper secondary education … modelled data gender in Tonga, year by year
| Year | modelled data | Change |
|---|---|---|
| 1981 | 1.01 modelled data | — |
| 1982 | 1.02 modelled data | +0.4% |
| 1983 | 1.03 modelled data | +0.8% |
| 1984 | 1.03 modelled data | +0.5% |
| 1985 | 1.04 modelled data | +0.7% |
| 1986 | 1.05 modelled data | +1.0% |
| 1987 | 1.05 modelled data | +0.4% |
| 1988 | 1.06 modelled data | +0.7% |
| 1989 | 1.07 modelled data | +0.9% |
| 1990 | 1.07 modelled data | +0.4% |
| 1991 | 1.08 modelled data | +0.7% |
| 1992 | 1.09 modelled data | +0.6% |
| 1993 | 1.09 modelled data | +0.5% |
| 1994 | 1.1 modelled data | +0.6% |
| 1995 | 1.1 modelled data | +0.2% |
| 1996 | 1.11 modelled data | +0.4% |
| 1997 | 1.11 modelled data | +0.2% |
| 1998 | 1.11 modelled data | +0.2% |
| 1999 | 1.11 modelled data | +0.3% |
| 2000 | 1.12 modelled data | +0.1% |
| 2001 | 1.12 modelled data | +0.3% |
| 2002 | 1.12 modelled data | +0.1% |
| 2003 | 1.12 modelled data | +0.4% |
| 2004 | 1.13 modelled data | +0.2% |
| 2005 | 1.13 modelled data | +0.2% |
| 2006 | 1.13 modelled data | +0.3% |
| 2007 | 1.13 modelled data | +0.3% |
| 2008 | 1.14 modelled data | +0.2% |
| 2009 | 1.14 modelled data | +0.1% |
| 2010 | 1.14 modelled data | +0.1% |
| 2011 | 1.14 modelled data | +0.1% |
| 2012 | 1.14 modelled data | +0.0% |
| 2013 | 1.14 modelled data | -0.0% |
| 2014 | 1.14 modelled data | +0.1% |
| 2015 | 1.14 modelled data | +0.0% |
| 2016 | 1.14 modelled data | +0.1% |
| 2017 | 1.14 modelled data | +0.1% |
| 2018 | 1.14 modelled data | +0.1% |
| 2019 | 1.15 modelled data | +0.1% |
| 2020 | 1.15 modelled data | +0.1% |
| 2021 | 1.15 modelled data | -0.0% |
| 2022 | 1.15 modelled data | -0.0% |
| 2023 | 1.15 modelled data | +0.0% |
| 2024 | 1.15 modelled data | -0.1% |
| 2025 | 1.14 modelled data | -0.1% |
Tonga compared with similar countries
- Tonga's 1.14 modelled data is above the median for upper middle income countries, which is 1.11 modelled data, 1.0× the median. (50 countries reporting)
- Tonga's 1.14 modelled data is below the median for East Asia & Pacific, which is 1.17 modelled data, 97% of the median. (21 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 1.04 modelled data | 1.01 modelled data | 1.07 modelled data | 9 |
| 1990s | 1.1 modelled data | 1.07 modelled data | 1.11 modelled data | 10 |
| 2000s | 1.13 modelled data | 1.12 modelled data | 1.14 modelled data | 10 |
| 2010s | 1.14 modelled data | 1.14 modelled data | 1.15 modelled data | 10 |
| 2020s | 1.15 modelled data | 1.14 modelled data | 1.15 modelled data | 6 |
Countries ranked near Tonga
More education data for Tonga
- Gender gap education levels, gaps filled 87.87 (1999)
- Primary enrollment selected countries, gaps filled 98.13 (2023)
- Teachers in secondary education, both sexes (number), gaps filled 1,086 (2015)
- Repeaters in primary education, all grades, both sexes (number), gaps 20 (2024)
- Enrolment in pre-primary education, male (number), gaps filled 1,228 (2024)
- Enrolment in pre-primary education, female (number), gaps filled 1,164 (2024)
- Secondary education, pupils, gaps filled 16,132 (2024)
- Primary education, duration (years), annual growth rate 0 % change on previous year (2025)
- Primary education, pupils, gaps filled 15,644 (2024)
- Primary education, pupils, annual growth rate -2.92 % change on previous year (2024)
Frequently asked questions
- What is completion rate, upper secondary education, adjusted gender parity in Tonga?
- Completion rate, upper secondary education, adjusted gender parity in Tonga was 1.14 modelled data in 2025, according to UNESCO Institute for Statistics.
- What is the highest completion rate, upper secondary education, adjusted gender parity recorded in Tonga?
- The highest recorded value was 1.15 modelled data in 2020.
- What is the lowest completion rate, upper secondary education, adjusted gender parity recorded in Tonga?
- The lowest recorded value was 1.01 modelled data in 1981.
- How does Tonga rank for completion rate, upper secondary education, adjusted gender parity?
- Tonga ranks 45th out of 164 countries with data for 2025.
- Is completion rate, upper secondary education, adjusted gender parity rising or falling in Tonga?
- Over the last ten years it is up 0.2%. 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 Completion rate, upper secondary education, adjusted gender parity index (GPIA) (modelled data). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 45 observations, free to reuse under CC BY-SA 3.0 IGO (UNESCO Institute for Statistics).
About this data
February 2026 Data Release