How many years of comparable data are there for Brunei and Hong Kong?

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.

Brunei vs Hong Kong: Share of population not using improved drinking water sources

Brunei

0.0%

in 2024

Hong Kong

0.0%

in 2024

Brunei rank

182nd

Hong Kong rank

182nd

Share of population not using improved drinking water sources over time

Brunei
Hong Kong

How they compare

Brunei currently reports 0.0% against 0.0% in Hong Kong, a difference of 0.0%.

The two have swapped places 2 times across 25 shared years of data; in 2000 it was Hong Kong ahead.

Brunei ranks 182nd and Hong Kong ranks 182nd of 231 countries.

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

Head to head by decade

Decade	Brunei	Hong Kong	Difference	Ahead
2000s	0.3%	0.8%	0.5%	Hong Kong
2010s	0.1%	0.2%	0.1%	Hong Kong
2020s	0.0%	0.0%	0.0%	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher share of population not using improved drinking water sources, Brunei or Hong Kong?: Brunei, at 0.0% against 0.0% in Hong Kong as of 2024.
What is the difference in share of population not using improved drinking water sources between Brunei and Hong Kong?: 0.0%, with Brunei ahead.
How many years of comparable data are there for Brunei and Hong Kong?: 25 years are reported by both, from 2000 to 2024.
How do Brunei and Hong Kong rank globally for share of population not using improved drinking water sources?: Brunei ranks 182nd and Hong Kong ranks 182nd 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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Brunei vs Hong Kong: 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 22 September 2026, from https://environment.statizoid.com/compare/share-without-improved-water/brunei-darussalam/hong-kong-sar-china/

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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.