Nigeria vs Tanzania: Drinking water services
Nigeria
8.79 million people
in 2024
Tanzania
7.51 million people
in 2024
Nigeria rank
2nd
Tanzania rank
4th
Drinking water services over time
- Nigeria
- Tanzania
How they compare
Nigeria currently reports 8.79 million people against 7.51 million people in Tanzania, a difference of 1.28 million people.
That makes Nigeria's figure about 1.2 times Tanzania's.
Across all 25 years both countries report, Nigeria has been ahead every year.
Nigeria ranks 2nd and Tanzania ranks 4th of 231 countries.
Nigeria has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Nigeria | Tanzania | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 27.12 million people | 6.03 million people | 21.09 million people | Nigeria |
| 2010s | 19.73 million people | 6.76 million people | 12.98 million people | Nigeria |
| 2020s | 11.38 million people | 7.38 million people | 4.00 million people | Nigeria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher drinking water services, Nigeria or Tanzania?
- Nigeria, at 8.79 million people against 7.51 million people in Tanzania as of 2024.
- What is the difference in drinking water services between Nigeria and Tanzania?
- 1.28 million people, with Nigeria ahead.
- How many years of comparable data are there for Nigeria and Tanzania?
- 25 years are reported by both, from 2000 to 2024.
- How do Nigeria and Tanzania rank globally for drinking water services?
- Nigeria ranks 2nd and Tanzania ranks 4th 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 Drinking water services. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Number of people using drinking water directly collected from surface waters.