CONGRESSIONAL DISTRICT NV

Nevada — 4th District

119th Congress · 89 ZIP codes · Avg score 83/100 · Grade B · Updated 2026-07-19

Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19

ZipCheckup tracks water safety for 89 ZIP codes in Nevada's 4th District: the district earns a grade B (83/100). 219 EPA violations on record, 43 health-based.

B
District Grade
83
Avg Safety Score
89
ZIP Codes
219
Total Violations
43
Health Violations
41
Water Systems
Best ZIP: 89031 (99/100)
Lowest ZIP: 89427 (40/100)

Top Contaminants

Surface Water Treatment Rule (52) Consumer Confidence Report Rule (46) Total Trihalomethanes (TTHM) (41) Contaminant 0700 (39) Lead (8)

ZIP Codes in This District

89 ZIP codes tracked in Nevada's 4th District. Showing top 50 by safety score.

# ZIP Code City Safety Score Grade Violations
1 89031 North Las Vegas 99 A 0
2 89032 North Las Vegas 99 A 0
3 89033 North Las Vegas 99 A 0
4 89036 North Las Vegas 99 A 0
5 89085 North Las Vegas 99 A 0
6 89086 North Las Vegas 99 A 0
7 89087 North Las Vegas 99 A 0
8 89018 Indian Springs 97 A 1
9 89070 Indian Springs 97 A 1
10 89024 Mesquite 95 A 2
11 89030 North Las Vegas 95 A 0
12 89034 Mesquite 95 A 2
13 89081 North Las Vegas 95 A 0
14 89084 North Las Vegas 95 A 0
15 89111 Las Vegas 94 A 4 (1 health)
16 89116 Las Vegas 94 A 4 (1 health)
17 89126 Las Vegas 94 A 4 (1 health)
18 89127 Las Vegas 94 A 4 (1 health)
19 89133 Las Vegas 94 A 4 (1 health)
20 89137 Las Vegas 94 A 4 (1 health)
21 89143 Las Vegas 94 A 4 (1 health)
22 89150 Las Vegas 94 A 4 (1 health)
23 89151 Las Vegas 94 A 4 (1 health)
24 89152 Las Vegas 94 A 4 (1 health)
25 89153 Las Vegas 94 A 4 (1 health)
26 89154 Las Vegas 94 A 4 (1 health)
27 89155 Las Vegas 94 A 4 (1 health)
28 89157 Las Vegas 94 A 4 (1 health)
29 89158 Las Vegas 94 A 4 (1 health)
30 89159 Las Vegas 94 A 4 (1 health)
31 89160 Las Vegas 94 A 4 (1 health)
32 89162 Las Vegas 94 A 4 (1 health)
33 89164 Las Vegas 94 A 4 (1 health)
34 89166 Las Vegas 94 A 4 (1 health)
35 89170 Las Vegas 94 A 4 (1 health)
36 89173 Las Vegas 94 A 4 (1 health)
37 89177 Las Vegas 94 A 4 (1 health)
38 89179 Las Vegas 94 A 4 (1 health)
39 89180 Las Vegas 94 A 4 (1 health)
40 89185 Las Vegas 94 A 4 (1 health)
41 89193 Las Vegas 94 A 4 (1 health)
42 89195 Las Vegas 94 A 4 (1 health)
43 89199 Las Vegas 94 A 4 (1 health)
44 89011 Henderson 93 A 1
45 89025 Moapa 93 A 1
46 89027 Mesquite 91 A 2
47 89107 Las Vegas 91 A 4 (1 health)
48 89115 Las Vegas 91 A 4 (1 health)
49 89129 Las Vegas 91 A 4 (1 health)
50 89131 Las Vegas 91 A 4 (1 health)

Overview

Nevada's 4th District encompasses 89 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (83/100).

219 EPA violations have been recorded across this district's water systems. 43 are health-based violations. About 67% of tracked ZIP codes have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • Surface Water Treatment Rule - 52 violations
  • Consumer Confidence Report Rule - 46 violations
  • Total Trihalomethanes (TTHM) - 41 violations
  • Contaminant 0700 - 39 violations
  • Lead - 8 violations

Housing Context

Homes in this district were built on average around 1988 (~38 years old). Most homes were built after lead pipe regulations were tightened.

Data Sources

Updated daily. Data covers 89 ZIP codes in Nevada's 4th District.

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How to cite this page

APA ZipCheckup. (2026). Nevada 4th District: 219 EPA Violations - B. https://zipcheckup.com/congressional/nv-4/
BibTeX
@misc{zipcheckup-congressional-nv-4,
  author = {{ZipCheckup}},
  title  = {{Nevada 4th District: 219 EPA Violations - B}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/nv-4/}
}

Data as of July 2026.

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