Neighborhood Report
Grade D
Surprise, AZ Neighborhood Water Quality — Grade D
5 ZIP codes · 120 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Surprise, AZ. We analyzed 5 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade D (53/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 1 | 20% |
| D | 4 | 80% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Surprise ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 85387 | 59 | C | 24 | 0.0141 mg/L |
| 2 | 85374 | 52 | D | 24 | 0.0141 mg/L |
| 3 | 85378 | 52 | D | 24 | 0.0141 mg/L |
| 4 | 85379 | 52 | D | 24 | 0.0141 mg/L |
| 5 | 85388 | 52 | D | 24 | 0.0141 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 0 neighborhoods score better than county average
- 5 neighborhoods score worse than county average
EPA Violations
- 120 total violations across Surprise
- 5 health-based violations
- 5 of 5 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Stage 1 DBP Rule | 30 | 5 |
| Consumer Confidence Report Rule | 20 | 5 |
| Contaminant 2105 | 15 | 5 |
| Revised Total Coliform Rule | 15 | 5 |
| Lead | 10 | 5 |
Frequently Asked Questions
What is the safest neighborhood in Surprise?
ZIP code 85387 has the highest safety score in Surprise at 59/100 (grade C). Check the full report for details.
Is Surprise water safe to drink?
Surprise has an average water safety score of 53/100 (D). Water quality varies by neighborhood — no ZIP codes currently exceed EPA lead limits. Always check your specific ZIP code.
Related Pages
Data Sources
- EPA SDWIS
- U.S. Census Bureau
Updated daily.