Guinea-Bissau vs Tanzania: Share of population not using improved drinking water sources
Guinea-Bissau
23.3%
in 2024
Tanzania
22.6%
in 2024
Guinea-Bissau rank
12th
Tanzania rank
14th
Share of population not using improved drinking water sources over time
- Guinea-Bissau
- Tanzania
How they compare
Guinea-Bissau currently reports 23.3% against 22.6% in Tanzania, a difference of 0.7%.
The two have swapped places 1 time across 25 shared years of data; in 2000 it was Tanzania ahead.
Guinea-Bissau ranks 12th and Tanzania ranks 14th of 231 countries.
Tanzania has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Guinea-Bissau | Tanzania | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 38.4% | 55.8% | 17.4% | Tanzania |
| 2010s | 29.4% | 38.4% | 9.0% | Tanzania |
| 2020s | 23.7% | 25.8% | 2.1% | Tanzania |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of population not using improved drinking water sources, Guinea-Bissau or Tanzania?
- Guinea-Bissau, at 23.3% against 22.6% in Tanzania as of 2024.
- What is the difference in share of population not using improved drinking water sources between Guinea-Bissau and Tanzania?
- 0.7%, with Guinea-Bissau ahead.
- How many years of comparable data are there for Guinea-Bissau and Tanzania?
- 25 years are reported by both, from 2000 to 2024.
- How do Guinea-Bissau and Tanzania rank globally for share of population not using improved drinking water sources?
- Guinea-Bissau ranks 12th and Tanzania ranks 14th of 231 countries.
- Where does this data come from?
- WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data, published as Share of population not using improved drinking water sources. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
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.