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United Kingdom

Yes. Tap water in the United Kingdom is low risk across 90 listed water systems.

EnglandScotlandWalesNorthern Ireland
Open an area for its towns. Green means every listed water system there is low risk. Orange or red means every listed system is high or critical risk. Any other area has mixed ratings.
England72 water systems · 72 low riskNorthern Ireland5 water systems · 5 low riskScotland7 water systems · 7 low riskWales6 water systems · 6 low risk

Source

Ofwat water company performance report 2024–25, and the national drinking-water regulators.

Period covered: 2024 to 2025.

UK tap water meets drinking-water standards almost everywhere. Towns in England and Wales show their water company’s compliance risk score. Scotland and Northern Ireland show the national compliance figure. Hardness is typical for the area and can vary street by street.

Common questions

Can I drink the tap water in the United Kingdom?

Yes. Tap water in the United Kingdom is low risk across 90 listed water systems.

Where do these ratings come from?

Ofwat water company performance report 2024–25, and the national drinking-water regulators. Period covered: 2024 to 2025.