CONGRESSIONAL DISTRICT CA

California — 38th District

119th Congress · 34 ZIP codes · Avg score 77/100 · Grade B · Updated 2026-03-22

Data: EPA SDWIS / Census 119th Congress Last verified: 2026-03-22

B
District Grade
77
Avg Safety Score
34
ZIP Codes
34
Total Violations
21
Water Systems
Best ZIP: 90632 (88/100)
Lowest ZIP: 90639 (53/100)

Top Contaminants

Consumer Confidence Report Rule (13) Haloacetic Acids (HAA5) (3) Total Trihalomethanes (TTHM) (3) Total Coliform (3) Revised Total Coliform Rule (3)

ZIP Codes in This District

34 ZIP codes tracked in California's 38th District.

# ZIP Code City Safety Score Grade Violations
1 90632 La Habra 88 A 0
2 90633 La Habra 88 A 0
3 90601 Whittier 83 B 0
4 90602 Whittier 83 B 0
5 90603 Whittier 83 B 0
6 90604 Whittier 83 B 0
7 90605 Whittier 83 B 0
8 90606 Whittier 83 B 0
9 90607 Whittier 83 B 0
10 90608 Whittier 83 B 0
11 90609 Whittier 83 B 0
12 90610 Whittier 83 B 0
13 90612 Whittier 83 B 0
14 91788 Walnut 83 B 0
15 91789 Walnut 83 B 0
16 91795 Walnut 83 B 0
17 90631 La Habra 82 B 0
18 90670 Santa Fe Springs 82 B 0
19 90671 Santa Fe Springs 81 B 0
20 90661 Pico Rivera 79 B 5
21 90662 Pico Rivera 79 B 5
22 90240 Downey 78 B 1
23 90650 Norwalk 75 B 0
24 91748 Rowland Heights 75 B 0
25 90640 Montebello 74 B 18
26 90660 Pico Rivera 74 B 5
27 90651 Norwalk 72 B 0
28 90652 Norwalk 72 B 0
29 90659 Norwalk 72 B 0
30 90638 La Mirada 63 C 0
31 91765 Diamond Bar 63 C 0
32 91745 Hacienda Heights 55 C 0
33 90637 La Mirada 53 D 0
34 90639 La Mirada 53 D 0

Overview

California's 38th District serving an estimated 2,378,489 residents encompasses 34 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (77/100).

34 EPA violations have been recorded across this district's water systems. None are health-based. About 15% of tracked ZIP codes have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • Consumer Confidence Report Rule — 13 violations
  • Haloacetic Acids (HAA5) — 3 violations
  • Total Trihalomethanes (TTHM) — 3 violations
  • Total Coliform — 3 violations
  • Revised Total Coliform Rule — 3 violations

Housing Context

Homes in this district were built on average around 1959 (~67 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 34 ZIP codes in California's 38th District.

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