Arizona — 7th District
119th Congress · 9 ZIP codes · Avg score 68/100 · Grade C · Updated 2026-06-03
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-06-03
Top Contaminants
ZIP Codes in This District
9 ZIP codes tracked in Arizona's 7th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 85624 | Patagonia | 82 | B | 10 (1 health) |
| 2 | 85637 | Sonoita | 76 | B | 0 |
| 3 | 85648 | Rio Rico | 76 | B | 8 |
| 4 | 85662 | Nogales | 69 | C | 237 (5 health) |
| 5 | 85646 | Tubac | 68 | C | 21 |
| 6 | 85628 | Nogales | 67 | C | 237 (5 health) |
| 7 | 85621 | Nogales | 62 | C | 237 (5 health) |
| 8 | 85640 | Tumacacori | 55 | C | 0 |
| 9 | 85611 | Elgin | 53 | D | 0 |
Overview
Arizona's 7th District serving an estimated 99,792 residents encompasses 9 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (68/100).
750 EPA violations have been recorded across this district's water systems. 16 are health-based violations. About 67% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Barium — 52 violations
- Revised Total Coliform Rule — 44 violations
- Total Trihalomethanes (TTHM) — 31 violations
- Lead — 30 violations
- Haloacetic Acids (HAA5) — 30 violations
Housing Context
Homes in this district were built on average around 1986 (~40 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 9 ZIP codes in Arizona's 7th District.