Is Kefalonia Tap Water Safe To Drink?
Yes! The tap water is safe to drink.
Tap water on Kefalonia is generally safe to drink when it comes from the municipal supply. Public drinking water in Greece is regulated under European Union standards.
The water may taste mineral-rich or treated, so some visitors prefer bottled water. If your accommodation uses a private well or storage tank, check with the host about its water supply.
Last checked: 2026-10-23
Greece is ranked as number 17 globally with a score of 92% in the water quality EPI research conducted by Yale University.
Source of Water in Kefalonia, Greece
Tap water in Kefalonia comes mainly from local groundwater, collected from springs and wells. The water is replenished by rainfall that filters into the island’s limestone aquifers.
Local water systems distribute these supplies to homes and businesses. The specific source can differ between parts of the island.
Kefalonia Drinking Fountains
Public drinking fountains in Kefalonia are generally safe when clearly marked for drinking and properly maintained, as municipal water is subject to Greek and EU drinking-water standards. Avoid unmarked or non-potable fountains, and do not drink from one if the water looks discolored or the fountain appears poorly maintained.
Drinking Water Map
Here is a map showing all the locations of drinking water spots in Kefalonia. 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.