California — 52nd District
119th Congress · 23 ZIP codes · Avg score 77/100 · Grade B · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 23 ZIP codes in California's 52nd District: the district earns a grade B (77/100). 124 EPA violations on record, 34 health-based.
Top Contaminants
ZIP Codes in This District
23 ZIP codes tracked in California's 52nd District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 91909 | Chula Vista | 99 | A | 0 |
| 2 | 91912 | Chula Vista | 99 | A | 0 |
| 3 | 91913 | Chula Vista | 99 | A | 0 |
| 4 | 91914 | Chula Vista | 99 | A | 0 |
| 5 | 91921 | Chula Vista | 99 | A | 0 |
| 6 | 91911 | Chula Vista | 95 | A | 0 |
| 7 | 91915 | Chula Vista | 95 | A | 0 |
| 8 | 91933 | Imperial Beach | 94 | A | 1 (1 health) |
| 9 | 91910 | Chula Vista | 90 | A | 0 |
| 10 | 91932 | Imperial Beach | 89 | A | 1 (1 health) |
| 11 | 91908 | Bonita | 74 | B | 9 |
| 12 | 91902 | Bonita | 69 | C | 9 |
| 13 | 91951 | National City | 66 | C | 0 |
| 14 | 92173 | San Ysidro | 66 | C | 0 |
| 15 | 92139 | San Diego | 65 | C | 13 (4 health) |
| 16 | 91950 | National City | 60 | C | 0 |
| 17 | 92102 | San Diego | 60 | C | 13 (4 health) |
| 18 | 92105 | San Diego | 60 | C | 13 (4 health) |
| 19 | 92114 | San Diego | 60 | C | 13 (4 health) |
| 20 | 92136 | San Diego | 60 | C | 13 (4 health) |
| 21 | 92154 | San Diego | 60 | C | 13 (4 health) |
| 22 | 92162 | San Diego | 60 | C | 13 (4 health) |
| 23 | 92113 | San Diego | 55 | C | 13 (4 health) |
Overview
California's 52nd District encompasses 23 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (77/100).
124 EPA violations have been recorded across this district's water systems. 34 are health-based violations. About 52% 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 - 76 violations
- Total Coliform - 16 violations
- Stage 2 DBP Rule - 16 violations
- Stage 1 DBP Rule - 8 violations
Housing Context
Homes in this district were built on average around 1978 (~48 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 23 ZIP codes in California's 52nd District.