Sierra Leone vs Tanzania: Share of population not using improved sanitation facilities
Sierra Leone
40.5%
in 2024
Tanzania
42.4%
in 2024
Sierra Leone rank
23rd
Tanzania rank
21st
Share of population not using improved sanitation facilities over time
- Sierra Leone
- Tanzania
How they compare
Tanzania currently reports 42.4% against 40.5% in Sierra Leone, a difference of 1.9%.
Across all 25 years both countries report, Tanzania has been ahead every year.
Sierra Leone ranks 23rd and Tanzania ranks 21st of 232 countries.
Tanzania has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Sierra Leone | Tanzania | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 62.5% | 84.7% | 22.2% | Tanzania |
| 2010s | 51.3% | 64.0% | 12.6% | Tanzania |
| 2020s | 42.8% | 47.1% | 4.3% | Tanzania |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of population not using improved sanitation facilities, Sierra Leone or Tanzania?
- Tanzania, at 42.4% against 40.5% in Sierra Leone as of 2024.
- What is the difference in share of population not using improved sanitation facilities between Sierra Leone and Tanzania?
- 1.9%, with Tanzania ahead.
- How many years of comparable data are there for Sierra Leone and Tanzania?
- 25 years are reported by both, from 2000 to 2024.
- How do Sierra Leone and Tanzania rank globally for share of population not using improved sanitation facilities?
- Sierra Leone ranks 23rd and Tanzania ranks 21st of 232 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 sanitation facilities. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
If no improved sanitation facility is available, people might practice open defecation or use unimproved sanitation facilities.