Asia
Seoul
South Korea
Quick Answer
Tap water is safe to drink.
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Seoul's tap water is treated to international standards and is generally safe to drink; many visitors, however, choose bottled or filtered water for taste. You can safely brush your teeth, shower, and use tap water for ice and washing produce.
Tap Water Usage Guide
Brush Teeth
Yes
Ice Cubes
Safe
Wash Fruit
Yes
Shower
Yes
Restaurants
Varies (often available on request)
Locals Drink
Mixed (many filter/boil)
Water Quality Score
Water Quality
Good
Water Source
Seoul draws most of its water from the Han River and its tributaries, supplemented by upstream reservoirs and dams (e.g., Paldang). Water is processed at modern municipal treatment plants with filtration and disinfection (chlorination and advanced treatment) before distribution.
Travel Safety Information
Pickpocket Risk
Low
Night Safety
Mostly safe
Scam Risk
Low
English Level
High
Best Time to Visit
April to June and September to November
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View on Amazon→Other Cities in South Korea
Busan
South Korea
Busan tap water is treated to meet national standards and is generally safe to drink; some visitors prefer bottled water or a filter for taste. You can safely brush your teeth and use tap water for washing fruit and ice, but carry bottled water if you are sensitive to a slight chlorine taste.
Incheon
South Korea
Tap water in Incheon is treated to strict standards and is generally safe to drink and use for brushing teeth; ice is safe. If you are staying in an older building or have a sensitive stomach, consider bottled water or using a hotel/room filter.
Daegu
South Korea
Daegu's tap water is treated to national and international standards and is generally safe to drink; many residents use household filters for taste. If you have a sensitive stomach or prefer better-tasting water, opt for bottled or filtered water.
Gwangju
South Korea
Gwangju's tap water is treated to national standards and is generally safe to drink straight from the tap; most visitors can drink it without issue. If you are staying in an older building or have a sensitive stomach, use bottled water or a personal filter as a precaution.