Arizona — 6th District
119th Congress · 74 ZIP codes · Avg score 67/100 · Grade C · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 74 ZIP codes in Arizona's 6th District: the district earns a grade C (67/100). 5,098 EPA violations on record, 663 health-based.
Top Contaminants
ZIP Codes in This District
74 ZIP codes tracked in Arizona's 6th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 85623 | Oracle | 83 | B | 0 |
| 2 | 85122 | Casa Grande | 82 | B | 9 (1 health) |
| 3 | 85130 | Casa Grande | 82 | B | 9 (1 health) |
| 4 | 85193 | Casa Grande | 82 | B | 9 (1 health) |
| 5 | 85222 | Casa Grande | 82 | B | 9 (1 health) |
| 6 | 85230 | Casa Grande | 82 | B | 9 (1 health) |
| 7 | 85293 | Casa Grande | 82 | B | 9 (1 health) |
| 8 | 85609 | Dragoon | 82 | B | 8 (1 health) |
| 9 | 85631 | San Manuel | 82 | B | 2 (1 health) |
| 10 | 85644 | Willcox | 82 | B | 21 (1 health) |
| 11 | 85241 | Picacho | 80 | B | 35 (3 health) |
| 12 | 85131 | Eloy | 79 | B | 54 (1 health) |
| 13 | 85141 | Picacho | 79 | B | 35 (3 health) |
| 14 | 85535 | Eden | 79 | B | 35 (1 health) |
| 15 | 85614 | Green Valley | 79 | B | 14 (1 health) |
| 16 | 85231 | Eloy | 78 | B | 54 (1 health) |
| 17 | 85605 | Bowie | 78 | B | 1 (1 health) |
| 18 | 85616 | Huachuca City | 77 | B | 22 (3 health) |
| 19 | 85636 | Sierra Vista | 77 | B | 37 (6 health) |
| 20 | 85643 | Willcox | 77 | B | 21 (1 health) |
| 21 | 85650 | Sierra Vista | 77 | B | 37 (6 health) |
| 22 | 85658 | Marana | 77 | B | 10 |
| 23 | 85613 | Fort Huachuca | 76 | B | 18 (7 health) |
| 24 | 85630 | Saint David | 76 | B | 13 (2 health) |
| 25 | 85671 | Sierra Vista | 76 | B | 37 (6 health) |
| 26 | 85619 | Mount Lemmon | 75 | B | 7 |
| 27 | 85534 | Duncan | 74 | B | 42 (4 health) |
| 28 | 85602 | Benson | 74 | B | 31 (6 health) |
| 29 | 85641 | Vail | 74 | B | 3 (1 health) |
| 30 | 85670 | Fort Huachuca | 74 | B | 18 (7 health) |
| 31 | 85638 | Tombstone | 73 | B | 14 |
| 32 | 85625 | Pearce | 72 | B | 8 (1 health) |
| 33 | 85635 | Sierra Vista | 72 | B | 37 (6 health) |
| 34 | 85653 | Marana | 72 | B | 10 |
| 35 | 85627 | Pomerene | 71 | B | 14 (4 health) |
| 36 | 85738 | Catalina | 70 | B | 8 |
| 37 | 85546 | Safford | 68 | C | 95 (4 health) |
| 38 | 85548 | Safford | 68 | C | 95 (4 health) |
| 39 | 85540 | Morenci | 67 | C | 29 (4 health) |
| 40 | 85145 | Red Rock | 66 | C | 22 (1 health) |
| 41 | 85245 | Red Rock | 66 | C | 22 (1 health) |
| 42 | 85610 | Elfrida | 66 | C | 13 (5 health) |
| 43 | 85654 | Rillito | 65 | C | 9 (1 health) |
| 44 | 85552 | Thatcher | 63 | C | 0 |
| 45 | 85606 | Cochise | 63 | C | 0 |
| 46 | 85652 | Cortaro | 63 | C | 0 |
| 47 | 85632 | San Simon | 58 | C | 39 (20 health) |
| 48 | 85704 | Tucson | 58 | C | 218 (29 health) |
| 49 | 85730 | Tucson | 58 | C | 218 (29 health) |
| 50 | 85741 | Tucson | 58 | C | 218 (29 health) |
Overview
Arizona's 6th District encompasses 74 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (67/100).
5098 EPA violations have been recorded across this district's water systems. 663 are health-based violations. About 89% 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 - 1056 violations
- Revised Total Coliform Rule - 606 violations
- Lead and Copper Rule - 596 violations
- Stage 1 DBP Rule - 390 violations
- Surface Water Treatment Rule - 294 violations
Housing Context
Homes in this district were built on average around 1989 (~37 years old). Most homes were built after lead pipe regulations were tightened.
Lead Alert: 2 ZIP codes 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 74 ZIP codes in Arizona's 6th District.