New Jersey drinking water quality
New Jersey has 3,411 active public water systems serving 9.6 million people. 1,851 of them, 54%, had at least one EPA violation in the past three years, 976 have an unresolved violation today, and 92 are designated serious violators by the EPA.
Active systems
3,411
in 21 counties
People served
9.6M
555 community systems serve 8.9M
Violations, past 3 years
1,851
54% of active systems
Serious violators
92
124 systems carry a health flag
Largest counties
All 21 countiesLargest community water systems
All 3,411 systems| System | Serves | Status |
|---|---|---|
| Veolia Water New Jersey Hackensack Bergen County |
792,713 | |
| NJ American Water Raritan Union County |
615,430 | |
| NJ American Water Coastal North Monmouth County |
377,613 | |
| Passaic Valley Water Commission Passaic County |
310,483 | |
| Newark Water Department Essex County |
294,274 | |
| NJ American Water Western Burlington County |
274,291 | |
| Jersey City Mua Hudson County |
262,000 | |
| Middlesex Water Company Middlesex County |
233,376 | |
| Wildwood City Water Department Cape May County |
218,472 | |
| NJ American Water Short Hills Essex County |
217,230 |
About the New Jersey data
Retrieved from EPA ECHO on Oct 11, 2026.