Can you drink tap water in North America? Mostly, yes.
Like all regions, the tap water varies from city to city, North America has a higher quality of tap water safety than most other regions of the world.
Notably, the vast majority of US cities and Canada have safe tap water. In Mexico, a highly-populated area like Mexico City and León have drinkable tap water. Outside of the major population centers, caution is advised.
People Using Safely Managed Drinking Water Services - North America