Vienna
Yes. Tap water in Vienna is low risk. Safe to drink from the tap. The safety figure is national, not a test of this town.
Is it safe?
Vienna
Low risk
Safe to drink from the tap
At large supplies, 99.9% of E. coli tests met the limit in 2025: 8 of 9,194 tests failed, at 7 of 280 supplies. Enterococci tests met the limit in 99.8% of 9,192 tests.
At smaller supplies that provide more than 100 cubic metres a day or serve more than 500 people, 99.3% of E. coli tests met the limit: 52 of 7,610 tests failed, at 36 of 1,435 supplies. Enterococci tests met the limit in 99.0% of 7,605 tests.
The report records no incident in 2025. An incident is a health risk lasting more than 10 days and affecting at least 1,000 people, and any boil order of that scale. 43 chemical derogations were in force.
Austria does not publish a town-by-town safety result, so these figures are national. Supplies below those sizes are not included.
Source
Austrian Ministry of Labour, Social Affairs, Health, Care and Consumer Protection, drinking-water report 2025.
Period covered: 2025.
Austria does not publish a result for each town. The 2025 report covers supplies that provide more than 100 cubic metres a day or serve more than 500 people. E. coli tests met the limit in 99.9% of tests at large supplies and 99.3% at smaller supplies in that range. The report records no incident in 2025. 43 chemical derogations were in force. These pages list major cities with that national figure.
Common questions
Can I drink the tap water in Vienna, Nationwide?
Yes. Tap water in Vienna is low risk. Safe to drink from the tap. The safety figure is national, not a test of this town.
Where do these ratings come from?
Austrian Ministry of Labour, Social Affairs, Health, Care and Consumer Protection, drinking-water report 2025. Period covered: 2025.