Is Sapporo Tap Water Safe To Drink?
Yes! The tap water is safe to drink.
Tap water in Sapporo, Hokkaido, is safe to drink. The municipal supply is treated and regularly tested to meet Japan’s national drinking water quality standards.
Sapporo’s water comes mainly from protected sources, including the Toyohira River system. No boiling or additional filtration is normally needed for healthy adults, although building plumbing can affect taste or quality.
Last checked: 2026-08-31
Japan is ranked as number 41 globally with a score of 78.1% in the water quality EPI research conducted by Yale University.
Source of Water in Sapporo, Japan
Sapporo’s tap water comes mainly from the Toyohira River, which is fed by rainfall and snowmelt in the mountains south of the city. The river’s water is collected through dams and intake facilities operated by the Sapporo Waterworks Bureau.
The water is treated at Sapporo’s water treatment plants, where it is filtered and disinfected before entering the distribution system. It is then delivered through the city’s network to homes, businesses, and public facilities.
Sapporo Drinking Fountains
Public drinking fountains in Sapporo are generally safe to use when they are connected to the municipal water supply and clearly intended for drinking. Sapporo’s tap water is treated and regulated under Japan’s national drinking water standards.
Do not drink from a fountain marked non-potable, poorly maintained, or affected by a posted water advisory. Let the water run briefly before drinking, especially if the fountain has not been used recently.
Drinking Water Map
Here is a map showing all the locations of drinking water spots in Sapporo. 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.