People using at least a basic drinking water source in Tonga
Tonga: People using at least a basic drinking water source was 102,986 people in 2024. ▬ Flat
People using at least a basic drinking water source 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
In 2024, people using at least a basic drinking water source in Tonga stood at 102,986 people.
That represents a change of down 0.4% on the previous year and down 2.2% over ten years.
Over the whole period, people using at least a basic drinking water source in Tonga peaked at 106,290 people in 2011 and was at its lowest, 101,179 people, in 2000.
That places Tonga 192nd out of 231 countries with data for 2024, putting it in the bottom quarter.
People using at least a basic drinking water source in Tonga, year by year
| Year | people | Change |
|---|---|---|
| 2000 | 101,179 people | — |
| 2001 | 101,781 people | +0.6% |
| 2002 | 102,358 people | +0.6% |
| 2003 | 102,939 people | +0.6% |
| 2004 | 103,537 people | +0.6% |
| 2005 | 104,176 people | +0.6% |
| 2006 | 104,799 people | +0.6% |
| 2007 | 105,314 people | +0.5% |
| 2008 | 105,653 people | +0.3% |
| 2009 | 105,883 people | +0.2% |
| 2010 | 106,126 people | +0.2% |
| 2011 | 106,290 people | +0.2% |
| 2012 | 106,177 people | -0.1% |
| 2013 | 105,795 people | -0.4% |
| 2014 | 105,327 people | -0.4% |
| 2015 | 104,815 people | -0.5% |
| 2016 | 104,246 people | -0.5% |
| 2017 | 104,075 people | -0.2% |
| 2018 | 104,279 people | +0.2% |
| 2019 | 104,374 people | +0.1% |
| 2020 | 104,404 people | +0.0% |
| 2021 | 104,188 people | -0.2% |
| 2022 | 103,794 people | -0.4% |
| 2023 | 103,402 people | -0.4% |
| 2024 | 102,986 people | -0.4% |
Tonga compared with similar countries
- Tonga's 102,986 people is below the median for upper middle income countries, which is 6.66 million people, 2% of the median. (58 countries reporting)
- Tonga's 102,986 people is below the median for East Asia & Pacific, which is 1.22 million people, 8% of the median. (37 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 103,762 people | 101,179 people | 105,883 people | 10 |
| 2010s | 105,150 people | 104,075 people | 106,290 people | 10 |
| 2020s | 103,755 people | 102,986 people | 104,404 people | 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 people using at least a basic drinking water source in Tonga?
- People using at least a basic drinking water source in Tonga was 102,986 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 using at least a basic drinking water source recorded in Tonga?
- The highest recorded value was 106,290 people in 2011.
- What is the lowest people using at least a basic drinking water source recorded in Tonga?
- The lowest recorded value was 101,179 people in 2000.
- How does Tonga rank for people using at least a basic drinking water source?
- Tonga ranks 192nd out of 231 countries with data for 2024.
- Is people using at least a basic drinking water source rising or falling in Tonga?
- Over the last ten years it is down 2.2%. 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 People using at least a basic drinking water source. 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 using an improved drinking water source, which is either available on premises, or collection time is no more than 30 minutes for a roundtrip.