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.
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
- Temperature anomalies by month 0.2414 °C (2026)
- Spring temperature anomalies 0.1251 °C (2026)
- Summer temperature anomalies -0.2407 °C (2026)
- Chief executive of the government is elected 1 (2025)
- Universal right to vote 2 (2025)
- Democracy 7 (2025)
- Civil liberties rating 2 (2025)
- Free country 2 (2025)
- Competitive elections 1 (2025)
- Elected parliament 1 (2025)
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.