People not using improved sanitation facilities in Tanzania
Tanzania: People not using improved sanitation facilities was 29.04 million people in 2024. ▼ Falling
People not using improved sanitation facilities in Tanzania, 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
Tanzania recorded 29.04 million people for people not using improved sanitation facilities in 2024. That is the lowest value across all 25 years on record.
That represents a change of down 2.5% on the previous year and down 11.5% over ten years.
Over the whole period, people not using improved sanitation facilities in Tanzania peaked at 33.12 million people in 2008 and was at its lowest, 29.04 million people, in 2024.
Tanzania ranks 6th of 232 countries on this measure, in the top 10%.
The long-run direction has been consistently falling across the 25 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 32.68 million people | 31.95 million people | 33.12 million people | 10 |
| 2010s | 32.69 million people | 31.97 million people | 32.98 million people | 10 |
| 2020s | 30.38 million people | 29.04 million people | 31.54 million people | 5 |
Countries ranked near Tanzania
More reference data data for Tanzania
- Spring temperature anomalies -0.6683 °C (2026)
- Summer temperature anomalies 0.3295 °C (2026)
- Temperature anomalies by month 0.5126 °C (2026)
- Universal right to vote in practice 2 (2025)
- Autumn temperature anomalies 0.5023 °C (2025)
- Winter temperature anomalies 0.6747 °C (2025)
- Consumer price index 231.54 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 0 (2025)
- Men's universal right to vote 1 (2025)
Frequently asked questions
- What is people not using improved sanitation facilities in Tanzania?
- People not using improved sanitation facilities in Tanzania was 29.04 million 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 sanitation facilities recorded in Tanzania?
- The highest recorded value was 33.12 million people in 2008.
- What is the lowest people not using improved sanitation facilities recorded in Tanzania?
- The lowest recorded value was 29.04 million people in 2024.
- How does Tanzania rank for people not using improved sanitation facilities?
- Tanzania ranks 6th out of 232 countries with data for 2024.
- Is people not using improved sanitation facilities rising or falling in Tanzania?
- Over the last ten years it is down 11.5%. The long-run trend across the full record is falling.
- Where does this Tanzania 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 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.