California — 20th District
119th Congress · 94 ZIP codes · Avg score 68/100 · Grade C · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 94 ZIP codes in California's 20th District: the district earns a grade C (68/100). 526 EPA violations on record, 328 health-based.
Top Contaminants
ZIP Codes in This District
94 ZIP codes tracked in California's 20th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 93268 | Taft | 83 | B | 0 |
| 2 | 93531 | Keene | 83 | B | 0 |
| 3 | 93556 | Ridgecrest | 83 | B | 0 |
| 4 | 93651 | Prather | 83 | B | 0 |
| 5 | 93603 | Badger | 82 | B | 2 (1 health) |
| 6 | 93238 | Kernville | 81 | B | 2 (2 health) |
| 7 | 93205 | Bodfish | 78 | B | 5 (2 health) |
| 8 | 93527 | Inyokern | 78 | B | 6 (1 health) |
| 9 | 93555 | Ridgecrest | 78 | B | 0 |
| 10 | 93306 | Bakersfield | 76 | B | 5 (4 health) |
| 11 | 93308 | Bakersfield | 76 | B | 5 (4 health) |
| 12 | 93309 | Bakersfield | 76 | B | 5 (4 health) |
| 13 | 93311 | Bakersfield | 76 | B | 5 (4 health) |
| 14 | 93312 | Bakersfield | 76 | B | 5 (4 health) |
| 15 | 93314 | Bakersfield | 76 | B | 5 (4 health) |
| 16 | 93561 | Tehachapi | 75 | B | 5 (2 health) |
| 17 | 93225 | Frazier Park | 73 | B | 3 (2 health) |
| 18 | 93581 | Tehachapi | 73 | B | 5 (2 health) |
| 19 | 93613 | Clovis | 73 | B | 6 (2 health) |
| 20 | 93707 | Fresno | 73 | B | 5 (2 health) |
| 21 | 93708 | Fresno | 73 | B | 5 (2 health) |
| 22 | 93709 | Fresno | 73 | B | 5 (2 health) |
| 23 | 93712 | Fresno | 73 | B | 5 (2 health) |
| 24 | 93714 | Fresno | 73 | B | 5 (2 health) |
| 25 | 93715 | Fresno | 73 | B | 5 (2 health) |
| 26 | 93716 | Fresno | 73 | B | 5 (2 health) |
| 27 | 93717 | Fresno | 73 | B | 5 (2 health) |
| 28 | 93718 | Fresno | 73 | B | 5 (2 health) |
| 29 | 93724 | Fresno | 73 | B | 5 (2 health) |
| 30 | 93729 | Fresno | 73 | B | 5 (2 health) |
| 31 | 93740 | Fresno | 73 | B | 5 (2 health) |
| 32 | 93741 | Fresno | 73 | B | 5 (2 health) |
| 33 | 93744 | Fresno | 73 | B | 5 (2 health) |
| 34 | 93745 | Fresno | 73 | B | 5 (2 health) |
| 35 | 93747 | Fresno | 73 | B | 5 (2 health) |
| 36 | 93750 | Fresno | 73 | B | 5 (2 health) |
| 37 | 93755 | Fresno | 73 | B | 5 (2 health) |
| 38 | 93760 | Fresno | 73 | B | 5 (2 health) |
| 39 | 93761 | Fresno | 73 | B | 5 (2 health) |
| 40 | 93764 | Fresno | 73 | B | 5 (2 health) |
| 41 | 93765 | Fresno | 73 | B | 5 (2 health) |
| 42 | 93771 | Fresno | 73 | B | 5 (2 health) |
| 43 | 93772 | Fresno | 73 | B | 5 (2 health) |
| 44 | 93773 | Fresno | 73 | B | 5 (2 health) |
| 45 | 93774 | Fresno | 73 | B | 5 (2 health) |
| 46 | 93775 | Fresno | 73 | B | 5 (2 health) |
| 47 | 93776 | Fresno | 73 | B | 5 (2 health) |
| 48 | 93777 | Fresno | 73 | B | 5 (2 health) |
| 49 | 93778 | Fresno | 73 | B | 5 (2 health) |
| 50 | 93779 | Fresno | 73 | B | 5 (2 health) |
Overview
California's 20th District encompasses 94 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (68/100).
526 EPA violations have been recorded across this district's water systems. 328 are health-based violations. About 76% 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 - 213 violations
- Lead - 66 violations
- Combined Radium - 64 violations
- Barium - 54 violations
- Contaminant 2414 - 40 violations
Housing Context
Homes in this district were built on average around 1977 (~49 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Lead Alert: 1 ZIP code in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.
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 94 ZIP codes in California's 20th District.