Share of population not using improved drinking water sources in Samoa
Samoa: Share of population not using improved drinking water sources was 0.6% in 2024. ◆ Volatile
Share of population not using improved drinking water sources in Samoa, 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 not using improved drinking water sources in Samoa is 0.6%, measured in 2024. That is the lowest value across all 25 years on record.
Compared with earlier readings it is down 23.8% on the previous year and down 80.2% over ten years.
Over the whole period, share of population not using improved drinking water sources in Samoa peaked at 5.3% in 2001 and was at its lowest, 0.6%, in 2024.
Samoa ranks 136th of 231 countries on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Share of population not using improved drinking water sources in Samoa, year by year
| Year | % | Change |
|---|---|---|
| 2000 | 5.3% | — |
| 2001 | 5.3% | +0.0% |
| 2002 | 5.3% | -0.0% |
| 2003 | 5.3% | -0.1% |
| 2004 | 5.3% | -0.1% |
| 2005 | 5.1% | -4.8% |
| 2006 | 4.8% | -5.0% |
| 2007 | 4.6% | -5.2% |
| 2008 | 4.3% | -5.5% |
| 2009 | 4.1% | -5.8% |
| 2010 | 3.8% | -6.1% |
| 2011 | 3.6% | -6.5% |
| 2012 | 3.3% | -7.0% |
| 2013 | 3.1% | -7.5% |
| 2014 | 2.8% | -8.0% |
| 2015 | 2.6% | -8.7% |
| 2016 | 2.3% | -9.5% |
| 2017 | 2.1% | -10.5% |
| 2018 | 1.8% | -11.7% |
| 2019 | 1.6% | -13.2% |
| 2020 | 1.4% | -15.1% |
| 2021 | 1.1% | -17.8% |
| 2022 | 0.9% | -18.6% |
| 2023 | 0.7% | -19.2% |
| 2024 | 0.6% | -23.8% |
Samoa compared with similar countries
- Samoa's 0.6% is below the median for upper middle income countries, which is 1.2%, 46% of the median. (58 countries reporting)
- Samoa's 0.6% is below the median for East Asia & Pacific, which is 1.2%, 47% of the median. (37 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 4.9% | 4.1% | 5.3% | 10 |
| 2010s | 2.7% | 1.6% | 3.8% | 10 |
| 2020s | 0.9% | 0.6% | 1.4% | 5 |
Countries ranked near Samoa
- 133 Sint Maarten (Dutch part) 0.7% compare
- 134 Jordan 0.6% compare
- 135 Barbados 0.6% compare
- 137 Latvia 0.5% compare
- 138 United States Virgin Islands 0.5% compare
- 139 Trinidad and Tobago 0.5% compare
More environment data for Samoa
- Historical exposure to drought — Land soil moisture anomaly 0.3482 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly 0.3183 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.23 °C (2025)
- Temperature change 0.919 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 2.68 % 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 -2.51 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
Frequently asked questions
- What is share of population not using improved drinking water sources in Samoa?
- Share of population not using improved drinking water sources in Samoa was 0.6% 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 of population not using improved drinking water sources recorded in Samoa?
- The highest recorded value was 5.3% in 2001.
- What is the lowest share of population not using improved drinking water sources recorded in Samoa?
- The lowest recorded value was 0.6% in 2024.
- How does Samoa rank for share of population not using improved drinking water sources?
- Samoa ranks 136th out of 231 countries with data for 2024.
- Is share of population not using improved drinking water sources rising or falling in Samoa?
- Over the last ten years it is down 80.2%. The long-run trend across the full record is volatile.
- Where does this Samoa 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 not using improved drinking water sources. Statizoid updates them automatically from the source API.
Download this data
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About this data
Proportion 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.