People using improved drinking water sources in Tanzania, United Republic of
Tanzania, United Republic of: People using improved drinking water sources was 7.95 million people in 2024. ▼ Falling
People using improved drinking water sources in Tanzania, United Republic of, 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
The most recent figure for people using improved drinking water sources in Tanzania, United Republic of is 7.95 million people, measured in 2024. That is the lowest value across all 25 years on record.
The figure is down 8.1% on the previous year and down 39.0% over ten years.
Over the whole period, people using improved drinking water sources in Tanzania, United Republic of peaked at 16.09 million people in 2000 and was at its lowest, 7.95 million people, in 2024.
That places Tanzania, United Republic of 9th out of 231 countries with data for 2024, putting it in the top 10%.
The long-run direction has been consistently falling across the 25 years of available data.
People using improved drinking water sources in Tanzania, United Republic of, year by year
| Year | people | Change |
|---|---|---|
| 2000 | 16.09 million people | — |
| 2001 | 16.01 million people | -0.5% |
| 2002 | 15.90 million people | -0.7% |
| 2003 | 15.76 million people | -0.9% |
| 2004 | 15.61 million people | -1.0% |
| 2005 | 15.45 million people | -1.0% |
| 2006 | 15.27 million people | -1.1% |
| 2007 | 15.08 million people | -1.3% |
| 2008 | 14.85 million people | -1.5% |
| 2009 | 14.56 million people | -1.9% |
| 2010 | 14.26 million people | -2.0% |
| 2011 | 13.98 million people | -2.0% |
| 2012 | 13.68 million people | -2.1% |
| 2013 | 13.38 million people | -2.2% |
| 2014 | 13.05 million people | -2.4% |
| 2015 | 12.72 million people | -2.5% |
| 2016 | 12.37 million people | -2.7% |
| 2017 | 11.98 million people | -3.1% |
| 2018 | 11.54 million people | -3.7% |
| 2019 | 11.04 million people | -4.3% |
| 2020 | 10.50 million people | -4.9% |
| 2021 | 9.93 million people | -5.4% |
| 2022 | 9.32 million people | -6.2% |
| 2023 | 8.66 million people | -7.1% |
| 2024 | 7.95 million people | -8.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 15.46 million people | 14.56 million people | 16.09 million people | 10 |
| 2010s | 12.80 million people | 11.04 million people | 14.26 million people | 10 |
| 2020s | 9.27 million people | 7.95 million people | 10.50 million people | 5 |
Countries ranked near Tanzania, United Republic of
More environment data for Tanzania, United Republic of
- Historical exposure to drought — Land soil moisture anomaly -7.52 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -7.29 Percentage change (2025)
- Exposure to drought — Land soil moisture anomaly 3.52 Percentage change (2024)
- Exposure to drought — Cropland soil moisture anomaly 2.43 Percentage change (2024)
- Heating Degree Days 32.33 (2024)
- Cooling Degree Days 3,254 (2024)
- Total fisheries production 669,540 metric tons (2024)
- Capture fisheries production 530,933 metric tons (2024)
- Aquaculture production 138,607 metric tons (2024)
- Nitrous oxide (N2O) emissions from Waste 0.6753 Mt CO2e (2024)
Frequently asked questions
- What is people using improved drinking water sources in Tanzania, United Republic of?
- People using improved drinking water sources in Tanzania, United Republic of was 7.95 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 using improved drinking water sources recorded in Tanzania, United Republic of?
- The highest recorded value was 16.09 million people in 2000.
- What is the lowest people using improved drinking water sources recorded in Tanzania, United Republic of?
- The lowest recorded value was 7.95 million people in 2024.
- How does Tanzania, United Republic of rank for people using improved drinking water sources?
- Tanzania, United Republic of ranks 9th out of 231 countries with data for 2024.
- Is people using improved drinking water sources rising or falling in Tanzania, United Republic of?
- Over the last ten years it is down 39.0%. The long-run trend across the full record is falling.
- Where does this Tanzania, United Republic of 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 improved drinking water sources. 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 only unimproved drinking water sources.