Water Quality · Rhode Island
Best Water Quality Counties in Rhode Island 2026
Ranked by EPA drinking water health violations.
Top 10 — Water Quality in Rhode Island
Score reflects water quality only — not overall county quality.
All Rhode Island Counties — Water Quality Rankings
5 counties ranked by water quality score. Overall Score shown for context.
| # | 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 |