Share using safely managed drinking water in Tonga
Tonga: Share using safely managed drinking water was 29.6% in 2024. ▬ Flat
Share using safely managed drinking water 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
Tonga recorded 29.6% for share using safely managed drinking water in 2024. That is the highest value across all 25 years on record.
That represents a change of up 0.4% over ten years.
Over the whole period, share using safely managed drinking water in Tonga peaked at 29.6% in 2024 and was at its lowest, 29.2%, in 2000.
That places Tonga 144th out of 163 countries with data for 2024, putting it in the bottom quarter.
Share using safely managed drinking water in Tonga, year by year
| Year | % | Change |
|---|---|---|
| 2000 | 29.2% | — |
| 2001 | 29.2% | +0.0% |
| 2002 | 29.2% | +0.0% |
| 2003 | 29.2% | +0.0% |
| 2004 | 29.3% | +0.0% |
| 2005 | 29.3% | +0.1% |
| 2006 | 29.3% | +0.1% |
| 2007 | 29.3% | +0.1% |
| 2008 | 29.4% | +0.1% |
| 2009 | 29.4% | +0.1% |
| 2010 | 29.4% | +0.1% |
| 2011 | 29.5% | +0.1% |
| 2012 | 29.5% | +0.0% |
| 2013 | 29.5% | +0.0% |
| 2014 | 29.5% | +0.0% |
| 2015 | 29.5% | +0.0% |
| 2016 | 29.5% | +0.0% |
| 2017 | 29.5% | +0.0% |
| 2018 | 29.5% | +0.0% |
| 2019 | 29.5% | +0.0% |
| 2020 | 29.5% | +0.0% |
| 2021 | 29.5% | +0.1% |
| 2022 | 29.6% | +0.1% |
| 2023 | 29.6% | +0.1% |
| 2024 | 29.6% | +0.0% |
Tonga compared with similar countries
- Tonga's 29.6% is below the median for upper middle income countries, which is 69.0%, 43% of the median. (39 countries reporting)
- Tonga's 29.6% is below the median for East Asia & Pacific, which is 64.6%, 46% of the median. (28 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 29.3% | 29.2% | 29.4% | 10 |
| 2010s | 29.5% | 29.4% | 29.5% | 10 |
| 2020s | 29.6% | 29.5% | 29.6% | 5 |
Countries ranked near Tonga
More environment data for Tonga
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.234 °C (2025)
- Temperature change 0.858 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 3.06 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 0.1689 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual 0 % change on previous year (2024)
Frequently asked questions
- What is share using safely managed drinking water in Tonga?
- Share using safely managed drinking water in Tonga was 29.6% 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 using safely managed drinking water recorded in Tonga?
- The highest recorded value was 29.6% in 2024.
- What is the lowest share using safely managed drinking water recorded in Tonga?
- The lowest recorded value was 29.2% in 2000.
- How does Tonga rank for share using safely managed drinking water?
- Tonga ranks 144th out of 163 countries with data for 2024.
- Is share using safely managed drinking water rising or falling in Tonga?
- Over the last ten years it is up 0.4%. The long-run trend across the full record is flat.
- 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 using safely managed drinking water. 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 an improved drinking water source that is located on premises, available when needed and free from fecal and priority chemical contamination.