CONGRESSIONAL DISTRICT CA

California - 51st District

119th Congress · 30 ZIP codes · Avg score 92/100 · Grade A · Updated N/A

Data: EPA SDWIS / Census 119th Congress Last verified: N/A

ZipCheckup's versioned Home Safety Profile covers 30 ZIP codes in California's 51st District: the measured model 4.0.0 average is Grade A (92/100). 2 EPA violations on record, 0 health-based.

A
District Grade
92
Avg Safety Score
30
ZIP Codes
2
Total Violations
7
Water Systems
La Mesa
Best ZIP: 91941 (92/100)
El Cajon
Lowest ZIP: 92021 (91/100)

Top Contaminants

Total Trihalomethanes (TTHM) (1) Haloacetic Acids (HAA5) (1)

ZIP Codes in This District

30 ZIP codes tracked in California's 51st District.

# ZIP Code City Safety Score Grade Violations
1 91941 La Mesa 92 A 0
2 91942 La Mesa 92 A 0
3 91945 Lemon Grove 92 A 0
4 91977 Spring Valley 92 A 0
5 91978 Spring Valley 92 A 0
6 92020 El Cajon 92 A 0
7 92108 San Diego 92 A 0
8 92110 San Diego 92 A 0
9 92111 San Diego 92 A 0
10 92115 San Diego 92 A 0
11 92116 San Diego 92 A 0
12 92117 San Diego 92 A 0
13 92119 San Diego 92 A 0
14 92120 San Diego 92 A 0
15 92121 San Diego 92 A 0
16 92123 San Diego 92 A 0
17 92124 San Diego 92 A 0
18 92126 San Diego 92 A 0
19 92131 San Diego 92 A 0
20 92145 San Diego 92 A 0
21 92182 San Diego 92 A 0
22 92021 El Cajon 91 A 2
23 91943 La Mesa N/A N/A N/A
24 91944 La Mesa N/A N/A N/A
25 91946 Lemon Grove N/A N/A N/A
26 91976 Spring Valley N/A N/A N/A
27 91979 Spring Valley N/A N/A N/A
28 92022 El Cajon N/A N/A N/A
29 92137 San Diego N/A N/A N/A
30 92194 San Diego N/A N/A N/A

Overview

California's 51st District encompasses 30 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is A (92/100).

2 EPA violations have been recorded across this district's water systems. The measured health breakdown reports no health-based violations. About 5% of the 22 ZIP records with a reported violation count have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • Total Trihalomethanes (TTHM) - 1 violation
  • Haloacetic Acids (HAA5) - 1 violation

Housing Context

Homes in this district were built on average around 1976 (~50 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.

Data Sources

Updated daily. Data covers 30 ZIP codes in California's 51st District.

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How to cite this page

APA ZipCheckup. (2026). California 51st District: 2 EPA Violations - A. https://zipcheckup.com/congressional/ca-51/
BibTeX 
@misc{zipcheckup-congressional-ca-51,
  author = {{ZipCheckup}},
  title  = {{California 51st District: 2 EPA Violations - A}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/ca-51/}
}

Page version: August 2026.

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