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

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.

Indicator: Share of population not using improved sanitation facilities
Unit: %
Source: WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 232 places, 5,597 data points, 2000–2024
Last refreshed: 07 August 2026

If no improved sanitation facility is available, people might practice open defecation or use unimproved sanitation facilities.