Every U.S. States Ranked by Best to Worst Drinking Water

Despite its isolated location, Hawaii performs very well when it comes to drinking water safety. A relatively small number of residents are affected by water systems that fail federal health standards, keeping population exposure to unsafe tap water lower than in most states.

Another advantage is stability. Hawaii doesn’t rely on massive, overburdened water systems, which reduces stress on infrastructure. That makes it easier to manage water quality consistently, limiting disruptions and helping residents trust their tap water day to day.