Fair — Average Score 70/100
State Overview
Water quality across Alabama receives an overall grade of C (Fair) with an average score of 70 out of 100, based on EPA compliance data from 637 ZIP codes statewide. This is roughly in line with the national average of 75. Approximately 21% of ZIP codes (134 areas) receive a D or F grade, indicating communities with notable water quality concerns that warrant attention. The lowest-scoring area is ZIP code 35222 (Birmingham) with a score of 33/100. Scores are calculated from EPA Safe Drinking Water Information System (SDWIS) violation records, lead and copper testing results, PFAS monitoring data from UCMR5, and enforcement actions over the past 5 years.
Lowest Scoring ZIP Codes