Primary school completion rates, adjusted gender parity index in Tonga
Tonga: Primary school completion rates, adjusted gender parity index was 1 index in 2025. ▬ Flat
Primary school completion rates, adjusted gender parity index in Tonga, 1981–2025
Source: UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data. Measured in index.
Analysis
In 2025, primary school completion rates, adjusted gender parity index in Tonga stood at 1 index. That is the lowest value across all 45 years on record.
Compared with earlier readings it is down 0.1% over ten years.
Over the whole period, primary school completion rates, adjusted gender parity index in Tonga peaked at 1.01 index in 1983 and was at its lowest, 1 index, in 2025.
Tonga ranks 89th of 165 countries on this measure, in the middle of the range.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 1.01 index | 1.01 index | 1.01 index | 9 |
| 1990s | 1.01 index | 1.01 index | 1.01 index | 10 |
| 2000s | 1.01 index | 1.01 index | 1.01 index | 10 |
| 2010s | 1 index | 1 index | 1.01 index | 10 |
| 2020s | 1 index | 1 index | 1 index | 6 |
Countries ranked near Tonga
More gender data for Tonga
- Age population, age 00, female, interpolated 1,112 (2025)
- Age population, age 00, male, interpolated 1,200 (2025)
- Age population, age 01, female, interpolated 1,106 (2025)
- Age population, age 01, male, interpolated 1,195 (2025)
- Age population, age 02, female, interpolated 1,110 (2025)
- Age population, age 02, male, interpolated 1,200 (2025)
- Age population, age 03, female, interpolated 1,117 (2025)
- Age population, age 03, male, interpolated 1,209 (2025)
- Age population, age 04, female, interpolated 1,105 (2025)
- Age population, age 04, male, interpolated 1,195 (2025)
Frequently asked questions
- What is primary school completion rates, adjusted gender parity index in Tonga?
- Primary school completion rates, adjusted gender parity index in Tonga was 1 index in 2025, according to UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data.
- What is the highest primary school completion rates, adjusted gender parity index recorded in Tonga?
- The highest recorded value was 1.01 index in 1983.
- What is the lowest primary school completion rates, adjusted gender parity index recorded in Tonga?
- The lowest recorded value was 1 index in 2025.
- How does Tonga rank for primary school completion rates, adjusted gender parity index?
- Tonga ranks 89th out of 165 countries with data for 2025.
- Is primary school completion rates, adjusted gender parity index rising or falling in Tonga?
- Over the last ten years it is down 0.1%. 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 (2026) – with minor processing by Our World in Data, published as part of Primary school completion rates, adjusted gender parity index. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 45 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
An adjusted gender parity index of 1 indicates equal primary school completion rates between boys and girls. Values below 1 favor boys, and values above 1 favor girls.