Can I drink tap water in any country?

No. Safe in US, Canada, Western Europe, Japan, Australia. Unsafe in much of Mexico, Africa, Southeast Asia, South America, and the Middle East.

  • Safe: USA, Canada, UK, Germany, France, Japan, Australia, New Zealand
  • Not safe: Mexico, India, Egypt, Kenya, Vietnam, Philippines, Dominican Republic
  • Middle East: not safe even in Dubai and Abu Dhabi due to building tank contamination
  • Ice cubes: same risk as tap water in unsafe countries
  • Brushing teeth: use bottled water in unsafe countries

Official resource: CDC Water Safety for Travelers

Traveling soon? See our Travel Essentials page.

Want a deeper dive? ↓

Detailed Answer

How It Works

Water safety depends on how a country treats and delivers its water. Developed nations use chlorination, filtration, and regular testing. Developing nations often lack consistent treatment or have aging pipes that allow contamination after water leaves the treatment plant.

Your body's immunity also matters. Local residents may have built tolerance to bacteria that would make a first-time visitor seriously ill. Never assume that because locals drink it, you can too.

The biggest risks in unsafe tap water are bacteria like E. coli and Salmonella, parasites like Giardia, viruses like Hepatitis A, and chemical contaminants like arsenic and lead. Symptoms typically appear 6 to 72 hours after drinking and range from mild stomach cramps to severe dehydration.

Where Tap Water Is Safe

  • North America: USA and Canada, safe nationwide
  • Western Europe: UK, Ireland, France, Germany, Italy, Spain, Portugal, Switzerland, Netherlands, Scandinavia, all safe
  • Asia: Japan, South Korea, and Singapore are safe
  • Oceania: Australia and New Zealand, safe nationwide

Where Tap Water Is Not Safe

  • Middle East: Dubai, Abu Dhabi, Bahrain, Saudi Arabia, Qatar, Jordan, Lebanon, Turkey. Water may meet standards at source but building storage tanks cause contamination at the tap
  • South Asia: India, Pakistan, Bangladesh. Never drink tap water anywhere, including five-star hotels
  • East Asia: China nationwide. Boiled water may still contain heavy metals from old pipes
  • Southeast Asia: Thailand, Vietnam, Indonesia, Philippines, Cambodia, Laos, Myanmar. Singapore is the only exception
  • Africa: Egypt, Morocco, Kenya, Nigeria, Ghana and most of the continent
  • Central and South America: Mexico including resort areas, Guatemala, Colombia, Peru, Brazil, Bolivia
  • Eastern Europe: Russia, Ukraine, Romania, Bulgaria, Serbia, Albania
  • Caribbean: Dominican Republic, Jamaica, Cuba, Bahamas

What You Need to Know

  • Middle East tap water: even luxury hotels in Dubai and Abu Dhabi advise against drinking it due to building tank contamination
  • Ice cubes are frozen tap water, assume all ice is unsafe in high-risk countries unless confirmed otherwise
  • Brushing teeth with tap water can still make you sick in high-risk countries, use bottled water
  • Check bottle seals before drinking, vendors in some countries refill empty bottles with tap water
  • Arsenic is invisible and tasteless, widespread in Bangladesh, India, and parts of Pakistan and cannot be detected without testing
  • Boiling water kills bacteria and parasites but does NOT remove arsenic or heavy metals
  • Salads and uncooked vegetables in unsafe countries are often washed in tap water, the same risk applies

Real Traveler Experiences

"I lived in Dubai for two years and never drank tap water. Every apartment has a storage tank on the roof. You have no idea when it was last cleaned. Everyone I knew bought bottled water for drinking and cooking."  Reddit r/dubai

"Traveled to Bangladesh for work. My local colleagues warned me not to even rinse my toothbrush in tap water. Another person on my trip ignored this and spent a week in hospital."  Lonely Planet forum

"In Karachi, my hotel had a water filter in the lobby but staff were filling it from the tap and not changing the filters. Got sick anyway. Now I only trust factory-sealed bottles."  Reddit r/travel

Alternatives to Tap Water

  • Bottled water: most common option, check the seal is intact before drinking
  • Filter bottle: Grayl filters viruses and bacteria and is the best option for high-risk countries. LifeStraw filters bacteria and parasites but not viruses
  • Boiling: bring to a rolling boil for at least one minute, three minutes above 6,500 feet. Kills all biological contaminants but not arsenic or heavy metals
  • Purification tablets: chlorine dioxide tablets like Aquatabs work well, takes 30 minutes. Iodine tablets are not safe for pregnant women or long-term use

Pro Tips

  • In the Middle East, ask your hotel specifically about their water filtration system before drinking anything from the tap
  • In Bangladesh and Pakistan, boiling water is not enough due to arsenic, use certified bottled water or an arsenic-rated filter
  • Carry a Grayl filter bottle for high-risk countries, it handles viruses that LifeStraw misses
  • In restaurants in unsafe countries, ask for bottled water. In Spanish: agua sin gas. In French: eau plate en bouteille
  • Buy bottled water from reputable shops, not street vendors, to reduce the risk of refilled bottles
  • When in doubt about any country, check the CDC Traveler's Health page for current advisories before you fly

Related Questions

Sources

AskTravel.org is an information website only. Always check local regulations and app availability before traveling, as rules change frequently.

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