CONGRESSIONAL DISTRICT CA

California - 26th District

119th Congress · 39 ZIP codes · Avg score 63/100 · Grade C · Updated N/A

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

ZipCheckup's versioned Home Safety Profile covers 39 ZIP codes in California's 26th District: the measured model 4.0.0 average is Grade C (63/100). 66 EPA violations on record, 13 health-based.

C
District Grade
63
Avg Safety Score
39
ZIP Codes
66
Total Violations
13
Health Violations
41
Water Systems
Best ZIP: 91302 (75/100)
Lowest ZIP: 93012 (43/100)

Top Contaminants

Consumer Confidence Report Rule (31) Stage 2 DBP Rule (10) Lead (8) Surface Water Treatment Rule (8) Total Trihalomethanes (TTHM) (4)

ZIP Codes in This District

39 ZIP codes tracked in California's 26th District.

# ZIP Code City Safety Score Grade Violations
1 91302 Calabasas 75 B 0
2 91362 Thousand Oaks 67 C 0
3 91377 Oak Park 67 C 0
4 93030 Oxnard 67 C 0
5 93035 Oxnard 67 C 0
6 91320 Newbury Park 66 C 1
7 91360 Thousand Oaks 66 C 2
8 91361 Westlake Village 66 C 1
9 93021 Moorpark 66 C 4
10 93033 Oxnard 66 C 1
11 93041 Port Hueneme 65 C 4
12 93063 Simi Valley 65 C 3
13 93065 Simi Valley 65 C 3
14 93015 Fillmore 63 C 5 (2 health)
15 93060 Santa Paula 59 C 13 (5 health)
16 93036 Oxnard 56 C 9 (2 health)
17 93010 Camarillo 50 D 1
18 93012 Camarillo 43 D 10 (4 health)
19 91319 Newbury Park N/A N/A N/A
20 91358 Thousand Oaks N/A N/A N/A
21 91359 Westlake Village N/A N/A N/A
22 91363 Thousand Oaks N/A N/A N/A
23 91376 Agoura Hills N/A N/A N/A
24 93009 Ventura N/A N/A N/A
25 93011 Camarillo N/A N/A N/A
26 93016 Fillmore N/A N/A N/A
27 93020 Moorpark N/A N/A N/A
28 93032 Oxnard N/A N/A N/A
29 93040 Piru N/A N/A N/A
30 93042 Point Mugu Nawc N/A N/A 3
31 93043 Port Hueneme Cbc Base N/A N/A 2
32 93044 Port Hueneme N/A N/A N/A
33 93061 Santa Paula N/A N/A N/A
34 93062 Simi Valley N/A N/A N/A
35 93064 Brandeis N/A N/A 3
36 93066 Somis N/A N/A 1
37 93093 Simi Valley N/A N/A N/A
38 93094 Simi Valley N/A N/A N/A
39 93099 Simi Valley N/A N/A N/A

Overview

California's 26th District encompasses 39 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (63/100).

66 EPA violations have been recorded across this district's water systems. 13 are health-based violations. About 77% 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:

  • Consumer Confidence Report Rule - 31 violations
  • Stage 2 DBP Rule - 10 violations
  • Lead - 8 violations
  • Surface Water Treatment Rule - 8 violations
  • Total Trihalomethanes (TTHM) - 4 violations

Housing Context

Homes in this district were built on average around 1978 (~48 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 39 ZIP codes in California's 26th District.

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How to cite this page

APA ZipCheckup. (2026). California 26th District: 66 EPA Violations - C. https://zipcheckup.com/congressional/ca-26/
BibTeX
@misc{zipcheckup-congressional-ca-26,
  author = {{ZipCheckup}},
  title  = {{California 26th District: 66 EPA Violations - C}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/ca-26/}
}

Page version: August 2026.

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