I've lived in Milan (Italy) London (UK) and Rethymno (Greece) tap water is safe to drink in all of them, extremely good in Milan just straight up, good in London but with a lot of limescale so we filtered it for taste reasons, and the same as London in Rethymno.

In NZ, the only time I've boiled water is when we had an earthquake that screwed up a bunch of stuff, including the water & sewage pipes.

I'm from 🇵🇭, particularly Davao City (southern part of the country).

Tap water is drinkable here although there are water bottles available.

Some Spanish cities: In Madrid, people drink tap water without boiling. Some leave it to rest so the slight chlorine smell leaves the water. In Barcelona and Valencia, being coastal cities with desalinators, their water is too "heavy" (has too high a density of minerals), which makes it unhealthy to consume on a regular basis, and boiling it does nothing, so people buy a lot of bottled water.

No boiling, but I bought a filter after listening to a story about PFAS.

Northern California, United States.

I filter my tap water mostly for taste, but it's completely safe to drink without boiling. I would even argue that it's beneficial to drink because of the fluoride (I'm not an anti-fluoride/anti-science nutjob).

I live in the great lakes region of Canada and our tap water is totally safe

Hell to do the no. The heavy metals alone would either kill me from anemia or make me go insane. It's bottled water for us in Mexico, unfortunately. :/ Those saying you can safely drink water from the tap in certain countries.. are you sure? Have you measured it yourself? Even some of the bottled water I ran some tests on back in the day were iffy.

I live in a major Italian city, I'm well over fifty, and I've always drunk unfiltered water straight from the tap without boiling. Some Italians apparently don't like the taste of tap water but it's still safe to drink it unfiltered and unboiled in nearly all the country.

Australia- Safe to drink. The water is chlorinated and fluoridated (for dental health).

I'm not 100% sure if the water is fluoridated across the whole country or just in my state

Yep, in the Netherlands we drink tap water all the time. No reason to boil it, except for tea of coffee of course.

Switzerland here,

Yes we absolutely drink tap water here, not only it is well regulated but it may also beat many bottled water in terms of taste..

I live in Vietnam and tap water is always boiled before drinking. Our tap water sucks.

New Zealand, we drink it from the tap although some claim to dislike it depending on which part of the country your in, personally I think they're a bit too fussy

Here is Jamaica it is safe to drink the tap water without boiling.

Belgium: yes! We drink tap water. Straight from the tap. Hardness varies from city to city. At my home I have a filter to make the water softer. That helps the taste but also keeps all faucets etc running.

Finland has all around signs for foreigners that the tap water is not only drinkable, but very high quality. https://yle.fi/a/3-10303369

But for some unfathomable reason, maybe to push more expensive drinks, many restaurants charge for tap water. Except they do not tell it in advance, you just get surprised by it on the bill and swear never to go that place again.

In the United States, it is a little bit different.

There are "standards" that water quality has to live up to. Do these standards actually meet the criteria for safe drinkable tap water? Not always. This is evident in places like Flint, Michigan and other poorer urban areas.

Some of the tap water can be so bad that people wouldn't dare to drink it even after boiling.

In some areas, the tap water quality is wonderful.

Here is a relatively decent source about the topic as it pertains to the USA. https://wisevoter.com/state-rankings/best-tap-water-in-the-us/#:~:text=The%20ten%20states%20with%20the,%2C%20South%20Dakota%2C%20and%20Nevada.

The long story short here, is certain places like Hawaii have extremely clean tap. Other places, like Texas, are notorious for having numerous water quality violations.

It falls down to each individual State and City for maintaining the standards that were set. In my opinion, it it just an easy way for them to waive liability at the end of the day.

X.

Australian here, I grew up drinking tap water without boiling it but since I married my wife who is Chinese, I must drink it after it was boiled. It's good for the healthy.

US. The tap water is safe to drink. Occasionally a metro area will have problems and issue a boil order, telling people to boil tap water before drinking, but this is rare. Some areas have problems with lead contamination due to aging infrastructure, but this too is uncommon in the modern day.

I grew up on well water and was used to drinking from the garden hose when working out in the yard; but thats southern US for ya.

Now days, jus fill a bottle from the tap and don't really put much thought to it.

Canadian here, drinking water right of the tap.

In Brazil we usually haver ceramic filters attached to our faucets, so we drink water from there.

I am in Japan and have no issues with tap water here, used to drink it regularly.

I live closer to Mt. Fuji now and go get spring water from the mountain weekly instead. There's a basin at a shrine nearby that collects it and is free for people to take. No issues with the tap water, but this water tastes a lot better.

Yes of course it's safe. I drink filtered water from our fridge, but tap is perfectly fine too. I'm from Europe btw.

Finnish here and the tap water here is one of the cleanest in the world, so yeah, I drink straight from the tap.

Norway = Yes. But the fresh water pipes are in the same trench as the sewer pipes, and being 100 years old, the clean water depends on the pressure. This is in Oslo btw..

You can drink the tap water in most places in Iceland without boiling it (especially in Reykjavik), but if you're further into the countryside then I would check first!

Acc. to this site it's fine to drink cold water without boiling in Iceland. However don't drink the tap warm water - it's sulphurous.

But answering your question, in Brazil it varies from city to city. I drink tap water in my city just fine, without boiling or filtering; but I had to do both in another city ~400km from here.

northern USA and we have some of the cleanest tap water in the country. Drink it all day from the tap you will never get sick from it, just tastes like nice water.

The thing about living in an undeveloped countries is that you don't have to worry about that sort of thing.. I'm pretty fucking sure a billion things will get me before contaminates water does.

France : we drink tap water directly without any issue. People who drink bottled water is because they dislike the taste of tap water where they live.

Most first world countries will issue boil warnings when there may be a necessary reason. Ie) water main work or other contamination.

Iceland should be fine. In fact, I think they have some of the cleanest water around.