CONGRESSIONAL DISTRICT NJ

New Jersey — 12th District

119th Congress · 57 ZIP codes · Avg score 50/100 · Grade D · Updated 2026-06-03

Data: EPA SDWIS / Census 119th Congress Last verified: 2026-06-03

D
District Grade
50
Avg Safety Score
57
ZIP Codes
2232
Total Violations
103
Health Violations
20
Water Systems
Perth Amboy
Best ZIP: 08862 (78/100)
Milltown
Lowest ZIP: 08850 (28/100)

Top Contaminants

E. coli (414) Consumer Confidence Report Rule (397) Stage 1 DBP Rule (343) Revised Total Coliform Rule (279) Haloacetic Acids (HAA5) (106)

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 12 (1 health)
2 08852 Monmouth Junction 72 B 17 (4 health)
3 08828 Helmetta 71 B 2
4 08831 Monroe Township 66 C 5
5 08871 Sayreville 66 C 14
6 08875 Somerset 66 C 39 (4 health)
7 08818 Edison 65 C 15
8 08988 New Brunswick 65 C 39
9 08989 New Brunswick 65 C 39
10 08536 Plainsboro 60 C 0
11 08857 Old Bridge 59 C 13
12 08884 Spotswood 59 C 17
13 08873 Somerset 56 C 39 (4 health)
14 08512 Cranbury 55 C 0
15 08525 Hopewell 55 C 22 (4 health)
16 08823 Franklin Park 55 C 0
17 08902 North Brunswick 55 C 0
18 08560 Titusville 54 D 7
19 08542 Princeton 53 D 0
20 08544 Princeton 53 D 0
21 08855 Piscataway 53 D 0
22 08553 Rocky Hill 52 D 0
23 08608 Trenton 52 D 205 (6 health)
24 08810 Dayton 52 D 0
25 08824 Kendall Park 52 D 0
26 08528 Kingston 50 D 0
27 08805 Bound Brook 50 D 0
28 08816 East Brunswick 50 D 0
29 08502 Belle Mead 47 D 0
30 08609 Trenton 47 D 205 (6 health)
31 08611 Trenton 47 D 205 (6 health)
32 08629 Trenton 47 D 205 (6 health)
33 08534 Pennington 46 D 6
34 07060 Plainfield 45 D 0
35 07062 Plainfield 45 D 0
36 07063 Plainfield 45 D 0
37 08550 Princeton Junction 45 D 0
38 08890 Zarephath 45 D 0
39 08641 Trenton 44 D 205 (6 health)
40 08644 Trenton 44 D 205 (6 health)
41 08882 South River 43 D 48 (14 health)
42 08540 Princeton 42 D 0
43 08628 Trenton 42 D 205 (6 health)
44 08504 Blawenburg 40 D 0
45 08541 Princeton 40 D 0
46 08558 Skillman 40 D 0
47 08640 Fort Dix 40 D 0
48 08648 Lawrence Township 40 D 0
49 08821 Flagtown 40 D 0
50 08880 South Bound Brook 40 D 0

Overview

New Jersey's 12th District serving an estimated 5,440,390 residents encompasses 57 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is D (50/100).

2232 EPA violations have been recorded across this district's water systems. 103 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:

  • E. coli — 414 violations
  • Consumer Confidence Report Rule — 397 violations
  • Stage 1 DBP Rule — 343 violations
  • Revised Total Coliform Rule — 279 violations
  • Haloacetic Acids (HAA5) — 106 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.

Lead Alert: 1 ZIP code in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.

Data Sources

Updated daily. Data covers 57 ZIP codes in New Jersey's 12th District.

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