California — 8th District
119th Congress · 27 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 27 ZIP codes in California's 8th District: the district earns a grade B (72/100). 18 EPA violations on record, 12 health-based.
Top Contaminants
ZIP Codes in This District
27 ZIP codes tracked in California's 8th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 94592 | Vallejo | 99 | A | 0 |
| 2 | 94510 | Benicia | 90 | A | 0 |
| 3 | 94591 | Vallejo | 90 | A | 0 |
| 4 | 95625 | Elmira | 88 | A | 0 |
| 5 | 94590 | Vallejo | 85 | A | 0 |
| 6 | 94565 | Pittsburg | 78 | B | 0 |
| 7 | 94585 | Suisun City | 77 | B | 0 |
| 8 | 94535 | Travis Afb | 73 | B | 0 |
| 9 | 94547 | Hercules | 73 | B | 4 (2 health) |
| 10 | 94564 | Pinole | 73 | B | 0 |
| 11 | 94569 | Port Costa | 73 | B | 0 |
| 12 | 94572 | Rodeo | 73 | B | 0 |
| 13 | 94802 | Richmond | 73 | B | 0 |
| 14 | 94534 | Fairfield | 70 | B | 7 (5 health) |
| 15 | 94525 | Crockett | 66 | C | 0 |
| 16 | 94807 | Richmond | 66 | C | 0 |
| 17 | 94808 | Richmond | 66 | C | 0 |
| 18 | 94820 | El Sobrante | 66 | C | 0 |
| 19 | 94850 | Richmond | 66 | C | 0 |
| 20 | 94509 | Antioch | 65 | C | 0 |
| 21 | 94533 | Fairfield | 65 | C | 7 (5 health) |
| 22 | 94801 | Richmond | 65 | C | 0 |
| 23 | 94803 | El Sobrante | 65 | C | 0 |
| 24 | 94804 | Richmond | 65 | C | 0 |
| 25 | 94805 | Richmond | 65 | C | 0 |
| 26 | 94806 | San Pablo | 60 | C | 0 |
| 27 | 94530 | El Cerrito | 55 | C | 0 |
Overview
California's 8th District encompasses 27 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (72/100).
18 EPA violations have been recorded across this district's water systems. 12 are health-based violations. About 11% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Stage 2 DBP Rule - 12 violations
- Lead - 6 violations
Housing Context
Homes in this district were built on average around 1969 (~57 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 27 ZIP codes in California's 8th District.