CONGRESSIONAL DISTRICT CA

California - 9th District

119th Congress · 41 ZIP codes · Avg score 85/100 · Grade A · Updated N/A

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

ZipCheckup's versioned Home Safety Profile covers 41 ZIP codes in California's 9th District: the measured model 4.0.0 average is Grade A (85/100). 47 EPA violations on record, 22 health-based.

A
District Grade
85
Avg Safety Score
41
ZIP Codes
47
Total Violations
22
Health Violations
33
Water Systems
Tracy
Best ZIP: 95304 (100/100)
Manteca
Lowest ZIP: 95336 (81/100)

Top Contaminants

Haloacetic Acids (HAA5) (22) Lead (14) Stage 1 DBP Rule (11)

ZIP Codes in This District

41 ZIP codes tracked in California's 9th District.

# ZIP Code City Safety Score Grade Violations
1 95304 Tracy 100 A 0
2 95320 Escalon 100 A 0
3 95376 Tracy 100 A 0
4 95391 Tracy 100 A 0
5 95202 Stockton 83 B 0
6 95203 Stockton 83 B 0
7 95204 Stockton 83 B 0
8 95211 Stockton 83 B 0
9 95215 Stockton 83 B 0
10 95258 Woodbridge 83 B 0
11 95337 Manteca 83 B 1
12 95366 Ripon 83 B 1
13 95205 Stockton 81 B 4 (2 health)
14 95206 Stockton 81 B 4 (2 health)
15 95207 Stockton 81 B 4 (2 health)
16 95209 Stockton 81 B 4 (2 health)
17 95210 Stockton 81 B 4 (2 health)
18 95212 Stockton 81 B 4 (2 health)
19 95219 Stockton 81 B 4 (2 health)
20 95231 French Camp 81 B 4 (2 health)
21 95240 Lodi 81 B 4 (2 health)
22 95242 Lodi 81 B 4 (2 health)
23 95336 Manteca 81 B 5 (2 health)
24 94505 Discovery Bay N/A N/A 0
25 95201 Stockton N/A N/A N/A
26 95208 Stockton N/A N/A N/A
27 95213 Stockton N/A N/A N/A
28 95214 Stockton N/A N/A N/A
29 95220 Acampo N/A N/A N/A
30 95227 Clements N/A N/A N/A
31 95230 Farmington N/A N/A 0
32 95234 Holt N/A N/A N/A
33 95236 Linden N/A N/A N/A
34 95237 Lockeford N/A N/A 0
35 95241 Lodi N/A N/A N/A
36 95253 Victor N/A N/A N/A
37 95267 Stockton N/A N/A N/A
38 95269 Stockton N/A N/A N/A
39 95296 Stockton N/A N/A N/A
40 95297 Stockton N/A N/A N/A
41 95686 Thornton N/A N/A N/A

Overview

California's 9th District encompasses 41 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is A (85/100).

47 EPA violations have been recorded across this district's water systems. 22 are health-based violations. About 50% of the 26 ZIP records with a reported violation count have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • Haloacetic Acids (HAA5) - 22 violations
  • Lead - 14 violations
  • Stage 1 DBP Rule - 11 violations

Housing Context

Homes in this district were built on average around 1981 (~45 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 41 ZIP codes in California's 9th District.

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How to cite this page

APA ZipCheckup. (2026). California 9th District: 47 EPA Violations - A. https://zipcheckup.com/congressional/ca-9/
BibTeX 
@misc{zipcheckup-congressional-ca-9,
  author = {{ZipCheckup}},
  title  = {{California 9th District: 47 EPA Violations - A}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/ca-9/}
}

Page version: August 2026.

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