People not using improved drinking water sources in Tonga
Tonga: People not using improved drinking water sources was 164.75 people in 2024. ▼ Falling
People not using improved drinking water sources 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 people.
Analysis
The most recent figure for people not using improved drinking water sources in Tonga is 164.75 people, measured in 2024. That is the lowest value across all 25 years on record.
Compared with earlier readings it is down 0.4% on the previous year and down 73.1% over ten years.
Over the whole period, people not using improved drinking water sources in Tonga peaked at 1,087 people in 2004 and was at its lowest, 164.75 people, in 2024.
Tonga ranks 167th of 231 countries on this measure, in the middle of the range.
The long-run direction has been consistently falling across the 25 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 1,015 people | 863.96 people | 1,087 people | 10 |
| 2010s | 587.91 people | 362.19 people | 816.27 people | 10 |
| 2020s | 224.54 people | 164.75 people | 313.54 people | 5 |
Countries ranked near Tonga
- 165 Sint Maarten (Dutch part) 268.61 people compare
- 166 Nauru 191.75 people compare
- 168 Falkland Islands 164.47 people compare
- 169 Saint Lucia 116.5 people compare
- 170 Saint Pierre and Miquelon 102.91 people compare
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 people not using improved drinking water sources in Tonga?
- People not using improved drinking water sources in Tonga was 164.75 people 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 people not using improved drinking water sources recorded in Tonga?
- The highest recorded value was 1,087 people in 2004.
- What is the lowest people not using improved drinking water sources recorded in Tonga?
- The lowest recorded value was 164.75 people in 2024.
- How does Tonga rank for people not using improved drinking water sources?
- Tonga ranks 167th out of 231 countries with data for 2024.
- Is people not using improved drinking water sources rising or falling in Tonga?
- Over the last ten years it is down 73.1%. 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 People not using improved drinking water sources. 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
Number of people not using improved drinking water sources. These people might use surface water sources or unprotected springs or wells, as no safe and reliable improved drinking water source is available to them.