New Jersey — 12th District
119th Congress · 57 ZIP codes · Avg score 53/100 · Grade D · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 57 ZIP codes in New Jersey's 12th District: the district earns a grade D (53/100). 605 EPA violations on record, 57 health-based.
Top Contaminants
ZIP Codes in This District
57 ZIP codes tracked in New Jersey's 12th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 08862 | Perth Amboy | 78 | B | 3 (1 health) |
| 2 | 08871 | Sayreville | 78 | B | 5 |
| 3 | 08852 | Monmouth Junction | 77 | B | 4 (1 health) |
| 4 | 08988 | New Brunswick | 75 | B | 11 |
| 5 | 08989 | New Brunswick | 75 | B | 11 |
| 6 | 08818 | Edison | 74 | B | 6 |
| 7 | 08828 | Helmetta | 71 | B | 2 |
| 8 | 08875 | Somerset | 68 | C | 14 (2 health) |
| 9 | 08831 | Monroe Township | 66 | C | 5 |
| 10 | 08857 | Old Bridge | 65 | C | 4 |
| 11 | 08884 | Spotswood | 64 | C | 6 |
| 12 | 08525 | Hopewell | 60 | C | 11 (2 health) |
| 13 | 08536 | Plainsboro | 60 | C | 0 |
| 14 | 08608 | Trenton | 60 | C | 51 (4 health) |
| 15 | 08534 | Pennington | 59 | C | 4 |
| 16 | 08873 | Somerset | 58 | C | 14 (2 health) |
| 17 | 08560 | Titusville | 57 | C | 5 |
| 18 | 08850 | Milltown | 56 | C | 21 (7 health) |
| 19 | 08512 | Cranbury | 55 | C | 0 |
| 20 | 08609 | Trenton | 55 | C | 51 (4 health) |
| 21 | 08611 | Trenton | 55 | C | 51 (4 health) |
| 22 | 08629 | Trenton | 55 | C | 51 (4 health) |
| 23 | 08823 | Franklin Park | 55 | C | 0 |
| 24 | 08902 | North Brunswick | 55 | C | 0 |
| 25 | 08641 | Trenton | 54 | D | 51 (4 health) |
| 26 | 08644 | Trenton | 54 | D | 51 (4 health) |
| 27 | 08542 | Princeton | 53 | D | 0 |
| 28 | 08544 | Princeton | 53 | D | 0 |
| 29 | 08855 | Piscataway | 53 | D | 0 |
| 30 | 08553 | Rocky Hill | 52 | D | 0 |
| 31 | 08810 | Dayton | 52 | D | 0 |
| 32 | 08824 | Kendall Park | 52 | D | 0 |
| 33 | 08528 | Kingston | 50 | D | 0 |
| 34 | 08628 | Trenton | 50 | D | 51 (4 health) |
| 35 | 08805 | Bound Brook | 50 | D | 0 |
| 36 | 08816 | East Brunswick | 50 | D | 0 |
| 37 | 08502 | Belle Mead | 47 | D | 0 |
| 38 | 08882 | South River | 47 | D | 20 (6 health) |
| 39 | 07060 | Plainfield | 45 | D | 0 |
| 40 | 07062 | Plainfield | 45 | D | 0 |
| 41 | 07063 | Plainfield | 45 | D | 0 |
| 42 | 08550 | Princeton Junction | 45 | D | 0 |
| 43 | 08618 | Trenton | 45 | D | 51 (4 health) |
| 44 | 08638 | Trenton | 45 | D | 51 (4 health) |
| 45 | 08890 | Zarephath | 45 | D | 0 |
| 46 | 08540 | Princeton | 42 | D | 0 |
| 47 | 08504 | Blawenburg | 40 | D | 0 |
| 48 | 08541 | Princeton | 40 | D | 0 |
| 49 | 08558 | Skillman | 40 | D | 0 |
| 50 | 08640 | Fort Dix | 40 | D | 0 |
Overview
New Jersey's 12th District encompasses 57 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is D (53/100).
605 EPA violations have been recorded across this district's water systems. 57 are health-based violations. About 46% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Stage 1 DBP Rule - 142 violations
- E. coli - 132 violations
- Consumer Confidence Report Rule - 128 violations
- Revised Total Coliform Rule - 52 violations
- Fecal Coliform - 36 violations
Housing Context
Homes in this district were built on average around 1969 (~57 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 57 ZIP codes in New Jersey's 12th District.