Is Jeju City Tap Water Safe To Drink?
Yes! The tap water is safe to drink.
Tap water in Jeju City is generally safe to drink. It is treated and monitored under South Korea’s national drinking water standards.
Water quality is typically reliable, although some people notice a mild chlorine taste. In older buildings, internal plumbing can affect taste or quality, so filtering may improve flavor.
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 Jeju City, South Korea
Tap water in Jeju City comes mainly from groundwater drawn from public wells in Jeju Island’s volcanic aquifers. Rainwater filters through the porous basalt and naturally replenishes these underground sources.
Some water also comes from surface-water facilities such as Eoseungsaeng Reservoir. Jeju’s municipal supply is treated and monitored under South Korean drinking-water standards.
Jeju City Drinking Fountains
Public drinking fountains in Jeju City are generally safe when they are officially designated, maintained, and labeled as drinking water. Municipal water supplies are treated and tested under South Korea’s drinking water standards.
Use fountains that are clean, functioning, and accompanied by a recent inspection notice or drinking-water designation. Avoid unmarked fountains, damaged fixtures, or water with unusual color, odor, or taste.
Drinking Water Map
Here is a map showing all the locations of drinking water spots in Jeju City. 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.