California — 17th District
119th Congress · 35 ZIP codes · Avg score 78/100 · Grade B · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 35 ZIP codes in California's 17th District: the district earns a grade B (78/100). 28 EPA violations on record, 17 health-based.
Top Contaminants
ZIP Codes in This District
35 ZIP codes tracked in California's 17th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 95050 | Santa Clara | 83 | B | 0 |
| 2 | 95052 | Santa Clara | 83 | B | 0 |
| 3 | 95053 | Santa Clara | 83 | B | 0 |
| 4 | 95054 | Santa Clara | 83 | B | 0 |
| 5 | 95055 | Santa Clara | 83 | B | 0 |
| 6 | 95056 | Santa Clara | 83 | B | 0 |
| 7 | 95101 | San Jose | 82 | B | 1 (1 health) |
| 8 | 95117 | San Jose | 82 | B | 1 (1 health) |
| 9 | 95126 | San Jose | 82 | B | 1 (1 health) |
| 10 | 95129 | San Jose | 82 | B | 1 (1 health) |
| 11 | 95131 | San Jose | 82 | B | 1 (1 health) |
| 12 | 95133 | San Jose | 82 | B | 1 (1 health) |
| 13 | 95134 | San Jose | 82 | B | 1 (1 health) |
| 14 | 95150 | San Jose | 82 | B | 1 (1 health) |
| 15 | 95152 | San Jose | 82 | B | 1 (1 health) |
| 16 | 95161 | San Jose | 82 | B | 1 (1 health) |
| 17 | 95164 | San Jose | 82 | B | 1 (1 health) |
| 18 | 95170 | San Jose | 82 | B | 1 (1 health) |
| 19 | 95190 | San Jose | 82 | B | 1 (1 health) |
| 20 | 95191 | San Jose | 82 | B | 1 (1 health) |
| 21 | 95194 | San Jose | 82 | B | 1 (1 health) |
| 22 | 95036 | Milpitas | 81 | B | 2 |
| 23 | 94539 | Fremont | 78 | B | 8 (1 health) |
| 24 | 95051 | Santa Clara | 78 | B | 0 |
| 25 | 95132 | San Jose | 77 | B | 1 (1 health) |
| 26 | 94085 | Sunnyvale | 75 | B | 0 |
| 27 | 94086 | Sunnyvale | 75 | B | 0 |
| 28 | 94087 | Sunnyvale | 75 | B | 0 |
| 29 | 94089 | Sunnyvale | 75 | B | 0 |
| 30 | 94088 | Sunnyvale | 72 | B | 0 |
| 31 | 95015 | Cupertino | 72 | B | 0 |
| 32 | 95035 | Milpitas | 71 | B | 2 |
| 33 | 95014 | Cupertino | 70 | B | 0 |
| 34 | 94560 | Newark | 63 | C | 0 |
| 35 | 95002 | Alviso | 50 | D | 0 |
Overview
California's 17th District encompasses 35 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (78/100).
28 EPA violations have been recorded across this district's water systems. 17 are health-based violations. About 54% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- E. coli - 16 violations
- Stage 1 DBP Rule - 6 violations
- Consumer Confidence Report Rule - 4 violations
- Stage 2 DBP Rule - 2 violations
Housing Context
Homes in this district were built on average around 1979 (~47 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 35 ZIP codes in California's 17th District.