Loading water data...
Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
Compare water quality across 17 counties in Alabama
17 counties ranked by average water quality score
| Rank | County | Avg Score | Grade | Cities | Population | Score Range |
|---|---|---|---|---|---|---|
| 1 | Coffee County | 95 | A+ | 1 | 28,711 | 95 - 95 |
| 2 | Montgomery County | 95 | A+ | 1 | 200,603 | 95 - 95 |
| 3 | Calhoun County | 94 | A | 1 | 21,564 | 94 - 94 |
| 4 | Mobile County | 90 | A | 2 | 206,363 | 83 - 96 |
| 5 | Tuscaloosa County | 90 | A | 2 | 125,744 | 86 - 93 |
| 6 | Morgan County | 88 | A- | 1 | 55,816 | 88 - 88 |
| 7 | Shelby County | 86 | A- | 1 | 33,487 | 86 - 86 |
| 8 | Lee County | 85 | A- | 2 | 107,138 | 84 - 85 |
| 9 | Houston County | 85 | A- | 1 | 71,072 | 85 - 85 |
| 10 | Madison County | 81 | B+ | 2 | 271,939 | 81 - 81 |
| 11 | Limestone County | 81 | B+ | 1 | 25,406 | 81 - 81 |
| 12 | Baldwin County | 80 | B+ | 1 | 28,633 | 80 - 80 |
| 13 | Autauga County | 80 | B+ | 1 | 36,599 | 80 - 80 |
| 14 | Jefferson County | 79 | B | 5 | 383,672 | 70 - 85 |
| 15 | Russell County | 72 | B- | 1 | 38,817 | 72 - 72 |
| 16 | Etowah County | 70 | B- | 1 | 33,945 | 70 - 70 |
| 17 | Lauderdale County | 68 | C+ | 1 | 40,797 | 68 - 68 |
1 cities • 28,711 residents
1 cities • 200,603 residents
1 cities • 21,564 residents
2 cities • 206,363 residents
2 cities • 125,744 residents
1 cities • 55,816 residents
1 cities • 33,487 residents
2 cities • 107,138 residents
1 cities • 71,072 residents
2 cities • 271,939 residents
1 cities • 25,406 residents
1 cities • 28,633 residents
See all 17 counties in the ranking table above
Our county-level water quality analysis aggregates data from municipal water systems across Alabama. Each county's score represents the average water quality across all analyzed cities within that county, weighted by population served.
With 17 counties and 25 cities analyzed, this data helps residents understand regional water quality patterns in Alabama. County scores range from 68/100 to 96/100, reflecting the diversity of water sources and treatment infrastructure across the state.
Currently, 1 counties in Alabama have average scores below 70, indicating potential water quality concerns. Residents in these areas should review their city's specific report and consider water filtration options.