Island in South Aegean, Greece
Can you drink tap water in Kos?
Can you drink the tap water in Kos?
Don't drink the tap water. Tap water is treated but heavily mineralised; locals and visitors drink bottled. Fill from larger bottles to cut plastic.
Key facts
- In Kos: Tap water is treated but heavily mineralised; locals and visitors drink bottled. Fill from larger bottles to cut plastic.
- Across Greece: Safe in Athens, Thessaloniki and most mainland towns. On many islands water is desalinated or trucked in; locals drink bottled.
- Safely managed drinking water: 97% of people in Greece (2024, WHO/UNICEF JMP).
Tap water across Greece
| Place | Tap water |
|---|---|
| Athens | Yes, drinkable |
| Santorini | No, drink bottled |
| Mykonos | No, drink bottled |
| Crete | Filter or boil |
| Rhodes | Filter or boil |
| Corfu | Filter or boil |
| Thessaloniki | Yes, drinkable |
| Naxos | Filter or boil |
| Paros | Filter or boil |
| Zakynthos | Filter or boil |
| Chania | Filter or boil |
| Milos | No, drink bottled |
| Kos | No, drink bottled |
| Kefalonia | Filter or boil |
| Meteora | Yes, drinkable |
| Halkidiki | Filter or boil |
| Ios | No, drink bottled |
| Lefkada | Filter or boil |
| Nafplio | Yes, drinkable |
| Skiathos | No, drink bottled |
| Hydra | No, drink bottled |
| Peloponnese | Yes, drinkable |
| Thassos | Filter or boil |
Quick answers
Is tap water safe to drink in Kos?
Don't drink the tap water. Tap water is treated but heavily mineralised; locals and visitors drink bottled. Fill from larger bottles to cut plastic.
Can you drink tap water in Greece?
Safe in Athens, Thessaloniki and most mainland towns. On many islands water is desalinated or trucked in; locals drink bottled.
More about Kos
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Sources
- World Bank: safely managed drinking water (WHO/UNICEF)
- CDC: food and water safety for travelers
- Kos Island International Airport
- Municipality of Kos
- Visit Greece
Verdicts reflect official utility statements and what locals actually do. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.