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Canada

It depends on the town. 579 of 645 listed water systems in Canada are low risk (89.8%).

Ontario
Open an area for its towns. Green means every listed water system there is low risk. Orange or red means every listed system is high or critical risk. Any other area has mixed ratings. Plain land has no town page.
Ontario645 water systems · 579 low risk

Source

Ontario Ministry of the Environment, Conservation and Parks, drinking water data 2023–24.

Period covered: April 2023 to March 2024.

Ontario towns are rated from the province’s test results for every municipal drinking-water system: the share of bacteria tests that met the standards, and any E. coli results. Other provinces do not publish one dataset like this, so only Ontario is listed.

Common questions

Can I drink the tap water in Canada?

It depends on the town. 579 of 645 listed water systems in Canada are low risk (89.8%).

Where do these ratings come from?

Ontario Ministry of the Environment, Conservation and Parks, drinking water data 2023–24. Period covered: April 2023 to March 2024.