Drinking water service usage in Tonga
Tonga: Drinking water service usage was 29.6% in 2024. ▬ Flat
Drinking water service usage 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 drinking water service usage in Tonga is 29.6%, measured in 2024. That is the highest value across all 25 years on record.
The figure is up 0.4% over ten years.
Over the whole period, drinking water service usage in Tonga peaked at 29.6% in 2024 and was at its lowest, 29.2%, in 2000.
Tonga ranks 144th of 163 countries on this measure, in the bottom quarter.
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
- Total greenhouse gas emissions excluding LULUCF 0.2929 Mt CO2e (2024)
- Total greenhouse gas emissions excluding LULUCF per capita 2.81 t CO2e/capita (2024)
- Methane (CH4) emissions from Agriculture 0.0593 Mt CO2e (2024)
- Methane (CH4) emissions from Building (Energy) 0.0003 Mt CO2e (2024)
- Methane (CH4) emissions from Fugitive Emissions (Energy) 0.0007 Mt CO2e (2024)
- Methane (CH4) emissions from Industrial Combustion (Energy) 0 Mt CO2e (2024)
- Methane (CH4) emissions (total) excluding LULUCF 0.0975 Mt CO2e (2024)
- Methane (CH4) emissions from Power Industry (Energy) 0 Mt CO2e (2024)
- Methane (CH4) emissions from Transport (Energy) 0.0002 Mt CO2e (2024)
- Methane (CH4) emissions from Waste 0.037 Mt CO2e (2024)
Frequently asked questions
- What is drinking water service usage in Tonga?
- Drinking water service usage 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 drinking water service usage recorded in Tonga?
- The highest recorded value was 29.6% in 2024.
- What is the lowest drinking water service usage recorded in Tonga?
- The lowest recorded value was 29.2% in 2000.
- How does Tonga rank for drinking water service usage?
- Tonga ranks 144th out of 163 countries with data for 2024.
- Is drinking water service usage 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 Drinking water service usage. 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 faecal and priority chemical contamination.