CONGRESSIONAL DISTRICT CA

California — 12th District

119th Congress · 45 ZIP codes · Avg score 69/100 · Grade C · Updated 2026-07-17

Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17

ZipCheckup tracks water safety for 45 ZIP codes in California's 12th District: the district earns a grade C (69/100). 52 EPA violations on record, 26 health-based.

C
District Grade
69
Avg Safety Score
45
ZIP Codes
52
Total Violations
26
Health Violations
7
Water Systems
Oakland
Best ZIP: 94606 (79/100)
Berkeley
Lowest ZIP: 94720 (53/100)

Top Contaminants

E. coli (26) Stage 1 DBP Rule (26)

ZIP Codes in This District

45 ZIP codes tracked in California's 12th District.

# ZIP Code City Safety Score Grade Violations
1 94606 Oakland 79 B 2 (1 health)
2 94607 Oakland 79 B 2 (1 health)
3 94609 Oakland 79 B 2 (1 health)
4 94612 Oakland 79 B 2 (1 health)
5 94604 Oakland 78 B 2 (1 health)
6 94613 Oakland 78 B 2 (1 health)
7 94614 Oakland 78 B 2 (1 health)
8 94615 Oakland 78 B 2 (1 health)
9 94617 Oakland 78 B 2 (1 health)
10 94622 Oakland 78 B 2 (1 health)
11 94623 Oakland 78 B 2 (1 health)
12 94624 Oakland 78 B 2 (1 health)
13 94649 Oakland 78 B 2 (1 health)
14 94659 Oakland 78 B 2 (1 health)
15 94660 Oakland 78 B 2 (1 health)
16 94661 Oakland 78 B 2 (1 health)
17 94666 Oakland 78 B 2 (1 health)
18 94601 Oakland 74 B 2 (1 health)
19 94602 Oakland 74 B 2 (1 health)
20 94603 Oakland 74 B 2 (1 health)
21 94610 Oakland 74 B 2 (1 health)
22 94618 Oakland 74 B 2 (1 health)
23 94619 Oakland 74 B 2 (1 health)
24 94621 Oakland 74 B 2 (1 health)
25 94605 Oakland 69 C 2 (1 health)
26 94611 Oakland 69 C 2 (1 health)
27 94608 Emeryville 63 C 0
28 94702 Berkeley 63 C 0
29 94703 Berkeley 63 C 0
30 94704 Berkeley 63 C 0
31 94705 Berkeley 63 C 0
32 94706 Albany 63 C 0
33 94707 Berkeley 63 C 0
34 94709 Berkeley 63 C 0
35 94710 Berkeley 63 C 0
36 94577 San Leandro 58 C 0
37 94501 Alameda 55 C 0
38 94502 Alameda 55 C 0
39 94708 Berkeley 55 C 0
40 94579 San Leandro 53 D 0
41 94620 Piedmont 53 D 0
42 94662 Emeryville 53 D 0
43 94701 Berkeley 53 D 0
44 94712 Berkeley 53 D 0
45 94720 Berkeley 53 D 0

Overview

California's 12th District encompasses 45 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (69/100).

52 EPA violations have been recorded across this district's water systems. 26 are health-based violations. About 58% of tracked ZIP codes have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • E. coli - 26 violations
  • Stage 1 DBP Rule - 26 violations

Housing Context

Homes in this district were built on average around 1948 (~78 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.

Lead Alert: 2 ZIP codes in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.

Data Sources

Updated daily. Data covers 45 ZIP codes in California's 12th District.

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How to cite this page

APA ZipCheckup. (2026). Lead Risk in California 12th District (CA-12). https://zipcheckup.com/congressional/ca-12/
BibTeX 
@misc{zipcheckup-congressional-ca-12,
  author = {{ZipCheckup}},
  title  = {{Lead Risk in California 12th District (CA-12)}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/ca-12/}
}

Data as of July 2026.

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