It is not safe to drink water from taps anywhere in Madagascar โ including the most expensive hotels. Bottled water (Ar1800 to Ar4000) is available throughout the country. If you can get clear water from a tap or well, water-purifying tablets are a good option.
To save on plastic, consider investing in a portable water filter/steriliser such as SteriPen (about US$100) or LifeStraw (about US$30).
Avoid ice in drinks without first asking if itโs been made from filtered water.
According to the CDC tap water is generally not safe for consumption.
According to the Numbeo water drinkability and accessibility index, tap water has a score of 26.56 / 100 (100 being best).
Numbeo considers this score to be "Low"
1 adult could save about 898$ per year in Madagascar by drinking tap water instead of buying bottled water.
๐ณ Drinking tap water would also help with reducing your plastic footprint and improve environmental pollution.
Like in most countries, water quality and accessibility differs from location to location, therefore it's the best to check the information available on that place.