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

Alabama ranks near the bottom because a higher share of residents are served by water systems with health-based violations. EPA data shows population exposure is well above average, especially in smaller communities with limited infrastructure investment.

A major issue is system age. Many water systems rely on old pipes and treatment facilities that need upgrades. Funding gaps slow repairs, which allows problems to linger longer than they should and reduces overall reliability for residents.