Delaware
Water Quality Report
91 Excellent
Average Score
91/100
Water Systems
62
Population
993,617
Violations
0 all resolved
Score Distribution
1 A
1 B
0 C
0 D
0 F
Top Contaminant Violations
| Contaminant | Violations |
|---|---|
| Chloramine | 1 |
| Benzene | 1 |
Lowest Scoring Water Systems
Counties in Delaware
Cities in Delaware
View all 24 cities →Popular City Comparisons in Delaware
Quickly compare major cities in Delaware by water quality score and grade.
Frequently Asked Questions
Is tap water in Delaware safe to drink?
Delaware has an average WaterQ score of 91/100 across 62 public water systems. Safety can vary by city and system, so check your local report for recent violations and contaminants.
How many water systems are in Delaware?
WaterQ currently tracks 62 public water systems in Delaware.
Where can I compare cities in Delaware?
Use the city list below to open detailed reports, or visit the compare tool to benchmark two cities side-by-side on score, grade, and system coverage.