% of public schools of basic education that have access to sewage via in Tonga
Tonga: % of public schools of basic education that have access to sewage via was 18.8 in 2025. ▲ Rising
% of public schools of basic education that have access to sewage via in Tonga, 2011–2025
Source: UNICEF.
Analysis
Tonga recorded 18.8 for % of public schools of basic education that have access to sewage via in 2025. That is the highest value across all 15 years on record.
That represents a change of up 5.0% on the previous year and up 63.5% over ten years.
Over the whole period, % of public schools of basic education that have access to sewage via in Tonga peaked at 18.8 in 2025 and was at its lowest, 7, in 2011.
The long-run direction has been consistently rising across the 15 years of available data.
% of public schools of basic education that have access to sewage via in Tonga, year by year
| Year | Value | Change |
|---|---|---|
| 2011 | 7 | — |
| 2012 | 8.3 | +18.6% |
| 2013 | 9.6 | +15.7% |
| 2014 | 10.8 | +12.5% |
| 2015 | 11.5 | +6.5% |
| 2016 | 12 | +4.3% |
| 2017 | 13.1 | +9.2% |
| 2018 | 14.1 | +7.6% |
| 2019 | 18.5 | +31.2% |
| 2020 | 18.4 | -0.5% |
| 2021 | 18.4 | +0.0% |
| 2022 | 18.1 | -1.6% |
| 2023 | 18.7 | +3.3% |
| 2024 | 17.9 | -4.3% |
| 2025 | 18.8 | +5.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 11.66 | 7 | 18.5 | 9 |
| 2020s | 18.38 | 17.9 | 18.8 | 6 |
Countries ranked near Tonga
More education data for Tonga
- 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)
- 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)
Frequently asked questions
- What is % of public schools of basic education that have access to sewage via in Tonga?
- % of public schools of basic education that have access to sewage via in Tonga was 18.8 in 2025, according to UNICEF.
- What is the highest % of public schools of basic education that have access to sewage via recorded in Tonga?
- The highest recorded value was 18.8 in 2025.
- What is the lowest % of public schools of basic education that have access to sewage via recorded in Tonga?
- The lowest recorded value was 7 in 2011.
- How does Tonga rank for % of public schools of basic education that have access to sewage via?
- Tonga ranks 13th out of 17 countries with data for 2025.
- Is % of public schools of basic education that have access to sewage via rising or falling in Tonga?
- Over the last ten years it is up 63.5%. The long-run trend across the full record is rising.
- Where does this Tonga data come from?
- The figures come from UNICEF, published as part of % of public schools of basic education that have access to sewage via the public network. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 15 observations, free to reuse under UNICEF Terms of Use (attribution required).