Is Oslo Tap Water Safe To Drink?
Yes! The tap water is safe to drink.
Yes, tap water in Oslo is safe to drink. It is treated and regularly tested under Norway’s strict drinking water standards.
The water is generally high quality and does not require home filtration. During rare local incidents, Oslo’s water authority may issue a boil water advisory, so follow official instructions if one is announced.
Last checked: 2026-08-31
Norway is ranked as number 6 globally with a score of 97.6% in the water quality EPI research conducted by Yale University.
Source of Water in Oslo, Norway
Oslo’s tap water comes mainly from Maridalsvannet, a lake north of the city. It is treated at the Oset water treatment plant before entering the distribution network.
A smaller share comes from the Elvåga water source and is treated at the Skullerud plant. The water is filtered, disinfected, and regularly tested to meet Norwegian drinking-water standards.
Oslo Drinking Fountains
Public drinking fountains in Oslo are generally safe to use because they are typically supplied by treated municipal drinking water that meets Norway’s strict quality standards. The city’s tap water is regularly monitored for microbiological and chemical safety.
Use fountains that are clean, flowing, and clearly intended for drinking, and follow any posted notices. Avoid using a fountain that is damaged, dirty, or marked as non-potable.
Drinking Water Map
Here is a map showing all the locations of drinking water spots in Oslo. You can click on each water drop to open the spot directly in Google Maps for directions. For easy access on the go, download our iOS app to find water fountains nearby.
Nearby Places
About the Author
Hi, I'm Emily Hartman, a researcher and water quality specialist with a background in public health.
I've spent the last few years studying how everyday water systems impact our health, and I'm passionate about making that information clear and useful for everyone.
Safe, clean tap water isn't just my job, it's something I truly care about.