Best Water Quality Counties in Rhode Island
EPA drinking water health violations and safety grades Compare rankings across all 5 counties.
All Rhode Island Counties Ranked
| # | County | Water Quality Score | Overall Score |
|---|---|---|---|
| 1 | Bristol County, RI | 86 | 58.6 |
| 2 | Kent County, RI | 86 | 47.2 |
| 3 | Providence County, RI | 68.2 | 36.7 |
| 4 | Newport County, RI | 49.6 | 52.2 |
| 5 | Washington County, RI | 35.2 | 55.9 |
Data Source
Water Quality data from WaterByCounty. See full details at WaterByCounty. Data updated February 2026.