Is Seoul Tap Water Safe To Drink?
Yes! The tap water is safe to drink.
Yes, tap water in Seoul is safe to drink. Seoul’s municipal water, known as Arisu, is treated and regularly tested to meet South Korean drinking water standards.
Water quality can be affected by old building pipes or storage tanks, especially in older properties. If the water looks cloudy or has a chlorine taste, let it run briefly or use a certified household filter.
Last checked: 2026-08-31
South Korea is ranked as number 21 globally with a score of 91.1% in the water quality EPI research conducted by Yale University.
Source of Water in Seoul, South Korea
Seoul’s tap water comes primarily from the Han River system, including water stored in Paldang Reservoir upstream of the city. Seoul’s water utility, Arisu, draws and treats this river water at several intake facilities.
The water is purified at Seoul’s water treatment plants before entering the city’s distribution network. Treatment includes processes such as coagulation, filtration, disinfection, and quality monitoring.
Seoul Drinking Fountains
Public drinking fountains in Seoul are generally safe to use because they are supplied by treated municipal water that meets South Korean drinking water standards. Public facilities are subject to water-quality management and regular maintenance.
Use fountains that are clearly marked for drinking and appear clean and well maintained. Avoid any fountain with a warning sign, visible damage, stagnant water, or an unusual taste or odor.
Drinking Water Map
Here is a map showing all the locations of drinking water spots in Seoul. 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.