% of public schools of basic education that have no access to sewage in Tonga
Tonga: % of public schools of basic education that have no access to sewage was 2.1 in 2025. ◆ Volatile
% of public schools of basic education that have no access to sewage in Tonga, 2010–2025
Source: UNICEF.
Analysis
In 2025, % of public schools of basic education that have no access to sewage in Tonga stood at 2.1. That is the lowest value across all 16 years on record.
Compared with earlier readings it is down 36.4% on the previous year and down 63.2% over ten years.
Over the whole period, % of public schools of basic education that have no access to sewage in Tonga peaked at 15.5 in 2010 and was at its lowest, 2.1, in 2025.
The series is highly variable year to year, so single readings are best treated with caution.
% of public schools of basic education that have no access to sewage in Tonga, year by year
| Year | Value | Change |
|---|---|---|
| 2010 | 15.5 | — |
| 2011 | 11.9 | -23.2% |
| 2012 | 9.3 | -21.8% |
| 2013 | 7.5 | -19.4% |
| 2014 | 6.3 | -16.0% |
| 2015 | 5.7 | -9.5% |
| 2016 | 4.9 | -14.0% |
| 2017 | 4.5 | -8.2% |
| 2018 | 4.3 | -4.4% |
| 2019 | 8.3 | +93.0% |
| 2020 | 7 | -15.7% |
| 2021 | 5.8 | -17.1% |
| 2022 | 4.3 | -25.9% |
| 2023 | 3.7 | -14.0% |
| 2024 | 3.3 | -10.8% |
| 2025 | 2.1 | -36.4% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 7.82 | 4.3 | 15.5 | 10 |
| 2020s | 4.37 | 2.1 | 7 | 6 |
Countries ranked near Tonga
More education data for Tonga
- Primary education, pupils, gaps filled 15,644 (2024)
- Primary education, pupils, annual growth rate -2.92 % change on previous year (2024)
- Primary education, pupils, per unit of GDP 0 units per US$ of GDP (2024)
- Primary education, pupils, per capita 0.1502 units per person (2024)
- Secondary education, duration (years), annual growth rate 0 % change on previous year (2025)
- Enrolment in primary education, both sexes (number), gaps filled 15,644 (2024)
- Enrolment in primary education, both sexes (number), annual growth -2.92 % change on previous year (2024)
- Enrolment in primary education, both sexes (number), per unit of GDP 0 units per US$ of GDP (2024)
- Enrolment in primary education, both sexes (number), per capita 0.1502 units per person (2024)
- Enrolment in primary education, female (number), gaps filled 7,462 (2024)
Frequently asked questions
- What is % of public schools of basic education that have no access to sewage in Tonga?
- % of public schools of basic education that have no access to sewage in Tonga was 2.1 in 2025, according to UNICEF.
- What is the highest % of public schools of basic education that have no access to sewage recorded in Tonga?
- The highest recorded value was 15.5 in 2010.
- What is the lowest % of public schools of basic education that have no access to sewage recorded in Tonga?
- The lowest recorded value was 2.1 in 2025.
- How does Tonga rank for % of public schools of basic education that have no access to sewage?
- Tonga ranks 7th out of 17 countries with data for 2025.
- Is % of public schools of basic education that have no access to sewage rising or falling in Tonga?
- Over the last ten years it is down 63.2%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from UNICEF, published as part of % of public schools of basic education that have no access to sewage. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 16 observations, free to reuse under UNICEF Terms of Use (attribution required).