Arizona — 5th District
119th Congress · 26 ZIP codes · Avg score 73/100 · Grade B · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 26 ZIP codes in Arizona's 5th District: the district earns a grade B (73/100). 776 EPA violations on record, 64 health-based.
Top Contaminants
ZIP Codes in This District
26 ZIP codes tracked in Arizona's 5th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 85127 | Chandler Heights | 80 | B | 3 |
| 2 | 85227 | Chandler Heights | 80 | B | 3 |
| 3 | 85225 | Chandler | 78 | B | 20 (2 health) |
| 4 | 85236 | Higley | 78 | B | 9 (1 health) |
| 5 | 85240 | Queen Creek | 78 | B | 35 (1 health) |
| 6 | 85243 | Queen Creek | 78 | B | 35 (1 health) |
| 7 | 85248 | Chandler | 78 | B | 20 (2 health) |
| 8 | 85249 | Chandler | 78 | B | 20 (2 health) |
| 9 | 85286 | Chandler | 77 | B | 20 (2 health) |
| 10 | 85142 | Queen Creek | 74 | B | 35 (1 health) |
| 11 | 85220 | Apache Junction | 74 | B | 34 (6 health) |
| 12 | 85178 | Apache Junction | 72 | B | 34 (6 health) |
| 13 | 85208 | Mesa | 72 | B | 7 |
| 14 | 85209 | Mesa | 72 | B | 7 |
| 15 | 85212 | Mesa | 72 | B | 7 |
| 16 | 85233 | Gilbert | 70 | B | 51 (4 health) |
| 17 | 85234 | Gilbert | 70 | B | 51 (4 health) |
| 18 | 85295 | Gilbert | 70 | B | 51 (4 health) |
| 19 | 85296 | Gilbert | 70 | B | 51 (4 health) |
| 20 | 85297 | Gilbert | 70 | B | 51 (4 health) |
| 21 | 85298 | Gilbert | 70 | B | 51 (4 health) |
| 22 | 85119 | Apache Junction | 69 | C | 34 (6 health) |
| 23 | 85120 | Apache Junction | 69 | C | 34 (6 health) |
| 24 | 85140 | San Tan Valley | 69 | C | 31 |
| 25 | 85143 | San Tan Valley | 69 | C | 31 |
| 26 | 85299 | Gilbert | 67 | C | 51 (4 health) |
Overview
Arizona's 5th District encompasses 26 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (73/100).
776 EPA violations have been recorded across this district's water systems. 64 are health-based violations. About 100% 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 - 121 violations
- Chlorite - 99 violations
- Surface Water Treatment Rule - 79 violations
- Stage 2 DBP Rule - 52 violations
- E. coli - 46 violations
Housing Context
Homes in this district were built on average around 1999 (~27 years old). Most homes were built after lead pipe regulations were tightened.
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 26 ZIP codes in Arizona's 5th District.