B79/100
Delaware Tap Water Quality Rankings 2026
24 cities · 977,709 people served
Top Contaminant Concerns
Copper (90th percentile)PFOSPFOALead (90th percentile)PFNA
All Cities in Delaware
| # | City | Score | Population | Violations |
|---|---|---|---|---|
| 1 | Newark | A (87) | 323,075 | 64 |
| 2 | Dover | B (79) | 238,600 | 64 |
| 3 | Wilmington | B (62) | 208,471 | 21 |
| 4 | Frankford | A (91) | 31,000 | 1 |
| 5 | Rehoboth Beach | B (79) | 26,575 | 8 |
| 6 | Bethany Beach | A (82) | 24,450 | 9 |
| 7 | Middletown | A (92) | 22,257 | 8 |
| 8 | Smyrna | A (81) | 11,813 | 3 |
| 9 | Lewes | A (82) | 11,027 | 13 |
| 10 | Long Neck | B (66) | 11,000 | 7 |
| 11 | Milford | A (93) | 9,800 | 3 |
| 12 | Millsboro | B (69) | 8,568 | 8 |
| 13 | Georgetown | A (81) | 7,259 | 0 |
| 14 | Seaford | B (63) | 6,699 | 9 |
| 15 | Bridgeville | B (72) | 6,000 | 4 |
| 16 | New Castle | A (98) | 5,549 | 2 |
| 17 | Selbyville | A (84) | 5,002 | 7 |
| 18 | Camden | A (81) | 5,000 | 4 |
| 19 | Laurel | A (88) | 3,984 | 4 |
| 20 | Harrington | B (75) | 3,562 | 14 |
| 21 | Milton | A (91) | 3,200 | 6 |
| 22 | Delmar | A (80) | 2,027 | 5 |
| 23 | Felton | C (50) | 1,591 | 15 |
| 24 | Blades | A (80) | 1,200 | 8 |