California — 45th District
119th Congress · 36 ZIP codes · Avg score 86/100 · Grade A · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 36 ZIP codes in California's 45th District: the district earns a grade A (86/100). 1 EPA violation on record, 0 health-based.
Top Contaminants
ZIP Codes in This District
36 ZIP codes tracked in California's 45th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 92684 | Westminster | 99 | A | 0 |
| 2 | 92685 | Westminster | 99 | A | 0 |
| 3 | 92834 | Fullerton | 99 | A | 0 |
| 4 | 92838 | Fullerton | 99 | A | 0 |
| 5 | 92846 | Garden Grove | 99 | A | 0 |
| 6 | 92728 | Fountain Valley | 96 | A | 0 |
| 7 | 90623 | La Palma | 95 | A | 0 |
| 8 | 92655 | Midway City | 95 | A | 1 |
| 9 | 92833 | Fullerton | 95 | A | 0 |
| 10 | 92836 | Fullerton | 95 | A | 0 |
| 11 | 92842 | Garden Grove | 95 | A | 0 |
| 12 | 92844 | Garden Grove | 95 | A | 0 |
| 13 | 92845 | Garden Grove | 95 | A | 0 |
| 14 | 92831 | Fullerton | 90 | A | 0 |
| 15 | 92835 | Fullerton | 90 | A | 0 |
| 16 | 92840 | Garden Grove | 90 | A | 0 |
| 17 | 92841 | Garden Grove | 90 | A | 0 |
| 18 | 90622 | Buena Park | 88 | A | 0 |
| 19 | 90624 | Buena Park | 88 | A | 0 |
| 20 | 92822 | Brea | 88 | A | 0 |
| 21 | 92871 | Placentia | 88 | A | 0 |
| 22 | 90620 | Buena Park | 87 | A | 0 |
| 23 | 92821 | Brea | 87 | A | 0 |
| 24 | 92683 | Westminster | 85 | A | 0 |
| 25 | 92843 | Garden Grove | 85 | A | 0 |
| 26 | 90621 | Buena Park | 82 | B | 0 |
| 27 | 92870 | Placentia | 82 | B | 0 |
| 28 | 92708 | Fountain Valley | 78 | B | 0 |
| 29 | 90703 | Cerritos | 75 | B | 0 |
| 30 | 90630 | Cypress | 73 | B | 0 |
| 31 | 90721 | Los Alamitos | 66 | C | 0 |
| 32 | 92811 | Atwood | 66 | C | 0 |
| 33 | 90720 | Los Alamitos | 65 | C | 0 |
| 34 | 90701 | Artesia | 63 | C | 0 |
| 35 | 90716 | Hawaiian Gardens | 63 | C | 0 |
| 36 | 90702 | Artesia | 53 | D | 0 |
Overview
California's 45th District encompasses 36 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is A (86/100).
1 EPA violation have been recorded across this district's water systems. None are health-based. About 3% 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 - 1 violation
Housing Context
Homes in this district were built on average around 1968 (~58 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 36 ZIP codes in California's 45th District.