TapWaterGuide
Worldwide water safety reference
Safe Europe · Last reviewed:

Is Tap Water Safe to Drink in Switzerland?

Yes, tap water in Switzerland is safe to drink everywhere, including directly from many public fountains, and is regarded as some of the highest quality water in the world.

Hardness
Varies by canton: hard in limestone regions (250–350 mg/L)
Locals Drink It?
Yes
Region
Europe
Cities Covered
1

Water Source

About 80% of Swiss tap water comes from groundwater and alpine springs, with the remainder from lakes, treated to extremely strict federal standards.

Contaminants & Concerns

No significant concerns anywhere in the country.

Regional Variations

Uniformly excellent across Zurich, Geneva, Bern, and rural alpine cantons.

Water Hardness

Varies by canton: hard in limestone regions (250–350 mg/L), softer in alpine granite areas (under 100 mg/L)..

Soft
Moderate
Hard
Very Hard

Do Locals Drink Tap Water?

Yes, tap water is the strong default and a source of national pride.

Tips for Travelers

  • Public fountains (Brunnen) throughout Swiss cities and villages run safe drinking water unless marked otherwise
  • No need to buy bottled water anywhere in Switzerland
  • Many fountains even have signage confirming Trinkwasser (drinking water)

Recommended Precautions

Only avoid fountains explicitly marked kein Trinkwasser / non potable

Cities in Switzerland

Frequently Asked Questions

Sources & References

The safety rating and guidance on this page draw on the following sources. See our full methodology.

Other Countries in Europe