How many years of comparable data are there for Gambia and Namibia?

25 years are reported by both, from 2000 to 2024.

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.

Gambia vs Namibia: Share of population not using improved drinking water sources

Gambia

7.0%

in 2024

Namibia

6.5%

in 2024

Gambia rank

51st

Namibia rank

52nd

Share of population not using improved drinking water sources over time

Gambia
Namibia

How they compare

Gambia currently reports 7.0% against 6.5% in Namibia, a difference of 0.5%.

That makes Gambia's figure about 1.1 times Namibia's.

Across all 25 years both countries report, Gambia has been ahead every year.

Gambia ranks 51st and Namibia ranks 52nd of 231 countries.

Gambia has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Gambia	Namibia	Difference	Ahead
2000s	15.2%	14.3%	1.0%	Gambia
2010s	10.7%	9.9%	0.8%	Gambia
2020s	7.7%	7.2%	0.6%	Gambia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher share of population not using improved drinking water sources, Gambia or Namibia?: Gambia, at 7.0% against 6.5% in Namibia as of 2024.
What is the difference in share of population not using improved drinking water sources between Gambia and Namibia?: 0.5%, with Gambia ahead.
How many years of comparable data are there for Gambia and Namibia?: 25 years are reported by both, from 2000 to 2024.
How do Gambia and Namibia rank globally for share of population not using improved drinking water sources?: Gambia ranks 51st and Namibia ranks 52nd 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.

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Gambia vs Namibia: Share of population not using improved drinking water sources. Statizoid, drawing on WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data. Retrieved 23 September 2026, from https://environment.statizoid.com/compare/share-without-improved-water/gambia-the/namibia/

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<a href="https://environment.statizoid.com/compare/share-without-improved-water/gambia-the/namibia/">Gambia vs Namibia: Share of population not using improved drinking water sources</a> — Statizoid

About this data

Indicator: Share of population not using improved drinking water sources
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: 231 places, 5,586 data points, 2000–2024
Last refreshed: 18 September 2026

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.