Share of population using safely managed sanitation in Tonga
Tonga: Share of population using safely managed sanitation was 31.2% in 2024. ▼ Falling
Share of population using safely managed sanitation in Tonga, 2000–2024
Source: WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data. Measured in %.
Analysis
The most recent figure for share of population using safely managed sanitation in Tonga is 31.2%, measured in 2024. That is the lowest value across all 25 years on record.
The figure is down 16.8% over ten years.
Over the whole period, share of population using safely managed sanitation in Tonga peaked at 40.7% in 2010 and was at its lowest, 31.2%, in 2024.
That places Tonga 115th out of 150 countries with data for 2024, putting it in the bottom quarter.
The long-run direction has been consistently falling across the 25 years of available data.
Share of population using safely managed sanitation in Tonga, year by year
| Year | % | Change |
|---|---|---|
| 2000 | 38.4% | — |
| 2001 | 38.4% | -0.0% |
| 2002 | 38.4% | -0.0% |
| 2003 | 38.4% | -0.0% |
| 2004 | 38.4% | -0.0% |
| 2005 | 38.8% | +1.0% |
| 2006 | 39.2% | +1.0% |
| 2007 | 39.6% | +1.0% |
| 2008 | 40.0% | +1.0% |
| 2009 | 40.4% | +1.0% |
| 2010 | 40.7% | +0.7% |
| 2011 | 39.9% | -1.9% |
| 2012 | 39.1% | -2.0% |
| 2013 | 38.3% | -2.0% |
| 2014 | 37.6% | -2.0% |
| 2015 | 36.8% | -2.0% |
| 2016 | 36.0% | -2.1% |
| 2017 | 35.3% | -2.1% |
| 2018 | 34.5% | -2.1% |
| 2019 | 33.8% | -2.2% |
| 2020 | 33.0% | -2.2% |
| 2021 | 32.3% | -2.3% |
| 2022 | 31.7% | -1.7% |
| 2023 | 31.3% | -1.5% |
| 2024 | 31.2% | -0.0% |
Tonga compared with similar countries
- Tonga's 31.2% is below the median for upper middle income countries, which is 52.9%, 59% of the median. (38 countries reporting)
- Tonga's 31.2% is below the median for East Asia & Pacific, which is 61.4%, 51% of the median. (24 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 39.0% | 38.4% | 40.4% | 10 |
| 2010s | 37.2% | 33.8% | 40.7% | 10 |
| 2020s | 31.9% | 31.2% | 33.0% | 5 |
Countries ranked near Tonga
More reference data data for Tonga
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.0105 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.0092 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.0197 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.0197 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.0353 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.0269 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 0.0446 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 0.1068 (2050)
- Emission Totals - Emissions (N2O) - Agricultural Soils 0.0799 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - Manure applied 9.35 (2050)
Frequently asked questions
- What is share of population using safely managed sanitation in Tonga?
- Share of population using safely managed sanitation in Tonga was 31.2% in 2024, according to WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data.
- What is the highest share of population using safely managed sanitation recorded in Tonga?
- The highest recorded value was 40.7% in 2010.
- What is the lowest share of population using safely managed sanitation recorded in Tonga?
- The lowest recorded value was 31.2% in 2024.
- How does Tonga rank for share of population using safely managed sanitation?
- Tonga ranks 115th out of 150 countries with data for 2024.
- Is share of population using safely managed sanitation rising or falling in Tonga?
- Over the last ten years it is down 16.8%. The long-run trend across the full record is falling.
- Where does this Tonga data come from?
- The figures come from WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data, published as part of Share of population using safely managed sanitation. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 25 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Proportion of people using improved sanitation facilities that are not shared with other households and where excreta are safely disposed in situ or transported and treated off-site.