Share of population not using improved sanitation facilities in Samoa
Samoa: Share of population not using improved sanitation facilities was 0.5% in 2024. ▼ Falling
Share of population not using improved sanitation facilities 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 sanitation facilities in Samoa is 0.5%, measured in 2024. That is the lowest value across all 25 years on record.
The figure is down 18.0% on the previous year and down 70.5% over ten years.
Over the whole period, share of population not using improved sanitation facilities in Samoa peaked at 2.7% in 2004 and was at its lowest, 0.5%, in 2024.
Samoa ranks 149th of 232 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.
Share of population not using improved sanitation facilities in Samoa, year by year
| Year | % | Change |
|---|---|---|
| 2000 | 2.7% | — |
| 2001 | 2.7% | -0.1% |
| 2002 | 2.7% | +0.1% |
| 2003 | 2.7% | +0.2% |
| 2004 | 2.7% | +0.2% |
| 2005 | 2.6% | -4.1% |
| 2006 | 2.5% | -4.3% |
| 2007 | 2.4% | -4.5% |
| 2008 | 2.2% | -4.7% |
| 2009 | 2.1% | -4.9% |
| 2010 | 2.0% | -5.2% |
| 2011 | 1.9% | -5.5% |
| 2012 | 1.8% | -5.9% |
| 2013 | 1.7% | -6.2% |
| 2014 | 1.6% | -6.7% |
| 2015 | 1.5% | -7.2% |
| 2016 | 1.3% | -7.8% |
| 2017 | 1.2% | -8.4% |
| 2018 | 1.1% | -9.3% |
| 2019 | 1.0% | -10.3% |
| 2020 | 0.9% | -11.5% |
| 2021 | 0.8% | -13.0% |
| 2022 | 0.7% | -13.8% |
| 2023 | 0.6% | -15.2% |
| 2024 | 0.5% | -18.0% |
Samoa compared with similar countries
- Samoa's 0.5% is below the median for upper middle income countries, which is 2.6%, 18% of the median. (58 countries reporting)
- Samoa's 0.5% is below the median for East Asia & Pacific, which is 2.4%, 19% of the median. (37 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 2.5% | 2.1% | 2.7% | 10 |
| 2010s | 1.5% | 1.0% | 2.0% | 10 |
| 2020s | 0.7% | 0.5% | 0.9% | 5 |
Countries ranked near Samoa
More reference data data for Samoa
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.023 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.0165 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.0396 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.0396 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.077 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.0626 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 0.0918 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 0.2319 (2050)
- Emission Totals - Emissions (N2O) - Burning - Crop residues 0 (2050)
- Emission Totals - Emissions (N2O) - Agricultural Soils 0.1693 (2050)
Frequently asked questions
- What is share of population not using improved sanitation facilities in Samoa?
- Share of population not using improved sanitation facilities in Samoa was 0.5% 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 sanitation facilities recorded in Samoa?
- The highest recorded value was 2.7% in 2004.
- What is the lowest share of population not using improved sanitation facilities recorded in Samoa?
- The lowest recorded value was 0.5% in 2024.
- How does Samoa rank for share of population not using improved sanitation facilities?
- Samoa ranks 149th out of 232 countries with data for 2024.
- Is share of population not using improved sanitation facilities rising or falling in Samoa?
- Over the last ten years it is down 70.5%. The long-run trend across the full record is falling.
- 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 sanitation facilities. 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
If no improved sanitation facility is available, people might practice open defecation or use unimproved sanitation facilities.