Mountain town in Wakayama, Japan
Can you drink tap water in Koyasan?
YesYes, drinkable
Can you drink the tap water in Koyasan?
Tap water is safe to drink. Safe to drink; mountain water is clean and cold.
Key facts
- In Koyasan: Safe to drink; mountain water is clean and cold.
- Across Japan: Safe to drink everywhere; restaurants serve free water or tea, and many stations and parks have fountains.
- Safely managed drinking water: 99% of people in Japan (2024, WHO/UNICEF JMP).
Tap water across Japan
| Place | Tap water |
|---|---|
| Tokyo | Yes, drinkable |
| Kyoto | Yes, drinkable |
| Osaka | Yes, drinkable |
| Hiroshima | Yes, drinkable |
| Nara | Yes, drinkable |
| Sapporo | Yes, drinkable |
| Okinawa | Yes, drinkable |
| Hakone | Yes, drinkable |
| Fukuoka | Yes, drinkable |
| Kawaguchiko | Yes, drinkable |
| Niseko | Yes, drinkable |
| Yokohama | Yes, drinkable |
| Kanazawa | Yes, drinkable |
| Takayama | Yes, drinkable |
| Nagoya | Yes, drinkable |
| Nikko | Yes, drinkable |
| Kamakura | Yes, drinkable |
| Kobe | Yes, drinkable |
| Hakuba | Yes, drinkable |
| Ishigaki | Yes, drinkable |
| Nagasaki | Yes, drinkable |
| Shirakawa-go | Yes, drinkable |
| Miyakojima | Yes, drinkable |
| Hakodate | Yes, drinkable |
| Otaru | Yes, drinkable |
| Beppu | Yes, drinkable |
| Matsumoto | Yes, drinkable |
| Koyasan | Yes, drinkable |
| Furano | Yes, drinkable |
| Sendai | Yes, drinkable |
Quick answers
Is tap water safe to drink in Koyasan?
Tap water is safe to drink. Safe to drink; mountain water is clean and cold.
Can you drink tap water in Japan?
Safe to drink everywhere; restaurants serve free water or tea, and many stations and parks have fountains.
More about Koyasan
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Sources
- World Bank: safely managed drinking water (WHO/UNICEF)
- CDC: food and water safety for travelers
- Koyasan Shukubo Association
- Koyasan Tourist Association
- Nankai Electric Railway
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 Spotted something out of date?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.