Lead pipes by county in Hawaii
Lead, galvanized and unknown service lines reported by the water systems serving each Hawaii county.
| County | Lead | Galv. | Unknown | Systems |
|---|---|---|---|---|
| Hawaii County | 0 | 53 | 2,972 | 24 |
| Honolulu County | 0 | 106 | 1,693 | 24 |
| Kauai County | 0 | 16 | 169 | 11 |
| Maui County | 0 | 315 | 29,401 | 26 |
Systems serving several counties are counted in each. Source: EPA SDWIS service line inventory, 2026 Q3.