Lead pipes by county in New Jersey
Lead, galvanized and unknown service lines reported by the water systems serving each New Jersey county.
| County | Lead | Galv. | Unknown | Systems |
|---|---|---|---|---|
| Atlantic County | 473 | 6,399 | 16,805 | 19 |
| Bergen County | 13,660 | 3,841 | 28,293 | 20 |
| Burlington County | 1,882 | 2,551 | 66,993 | 28 |
| Camden County | 9,507 | 2,576 | 65,968 | 16 |
| Cape May County | 15 | 7,087 | 8,952 | 16 |
| Cumberland County | 0 | 6,591 | 12,550 | 11 |
| Essex County | 8,160 | 8,279 | 59,189 | 20 |
| Gloucester County | 1 | 1,354 | 8,942 | 25 |
| Hudson County | 17,077 | 486 | 42,307 | 7 |
| Hunterdon County | 1,232 | 1,520 | 30,843 | 14 |
| Mercer County | 15,781 | 659 | 24,234 | 8 |
| Middlesex County | 334 | 4,194 | 41,492 | 16 |
| Monmouth County | 601 | 4,188 | 85,572 | 32 |
| Morris County | 1,360 | 3,981 | 60,258 | 45 |
| Ocean County | 211 | 4,399 | 94,384 | 43 |
| Passaic County | 1,383 | 2,936 | 35,769 | 22 |
| Salem County | 20 | 641 | 7,486 | 9 |
| Somerset County | 1,231 | 1,249 | 28,098 | 3 |
| Sussex County | 10 | 58 | 12,528 | 33 |
| Union County | 1,823 | 7,227 | 111,496 | 5 |
| Warren County | 1,237 | 1,719 | 30,317 | 12 |
Systems serving several counties are counted in each. Source: EPA SDWIS service line inventory, 2026 Q3.