Guinea-Bissau vs Sierra Leone: Share of population not using improved drinking water sources
Guinea-Bissau
23.3%
in 2024
Sierra Leone
24.4%
in 2024
Guinea-Bissau rank
12th
Sierra Leone rank
11th
Share of population not using improved drinking water sources over time
- Guinea-Bissau
- Sierra Leone
How they compare
Sierra Leone currently reports 24.4% against 23.3% in Guinea-Bissau, a difference of 1.1%.
Across all 25 years both countries report, Sierra Leone has been ahead every year.
Guinea-Bissau ranks 12th and Sierra Leone ranks 11th of 231 countries.
Sierra Leone has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Guinea-Bissau | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 38.4% | 47.9% | 9.5% | Sierra Leone |
| 2010s | 29.4% | 35.7% | 6.3% | Sierra Leone |
| 2020s | 23.7% | 26.8% | 3.1% | Sierra Leone |
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 Sierra Leone?
- Sierra Leone, at 24.4% against 23.3% in Guinea-Bissau as of 2024.
- What is the difference in share of population not using improved drinking water sources between Guinea-Bissau and Sierra Leone?
- 1.1%, with Sierra Leone ahead.
- How many years of comparable data are there for Guinea-Bissau and Sierra Leone?
- 25 years are reported by both, from 2000 to 2024.
- How do Guinea-Bissau and Sierra Leone rank globally for share of population not using improved drinking water sources?
- Guinea-Bissau ranks 12th and Sierra Leone ranks 11th 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.