Neighborhood Report
Grade B
Harlingen, TX Neighborhood Water Quality — Grade B
4 ZIP codes · 60 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Harlingen, TX. We analyzed 4 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade B (80/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 2 | 50% |
| B | 2 | 50% |
| C | 0 | 0% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Harlingen ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 78553 | 91 | A | 15 | 0.0023 mg/L |
| 2 | 78551 | 86 | A | 15 | 0.0023 mg/L |
| 3 | 78550 | 71 | B | 15 | 0.0023 mg/L |
| 4 | 78552 | 71 | B | 15 | 0.0023 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 2 neighborhoods score better than county average
- 2 neighborhoods score worse than county average
EPA Violations
- 60 total violations across Harlingen
- 4 health-based violations
- 4 of 4 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Surface Water Treatment Rule | 12 | 4 |
| Lead and Copper Rule | 12 | 4 |
| Lead | 8 | 4 |
| Stage 1 DBP Rule | 8 | 4 |
| Stage 2 DBP Rule | 8 | 4 |
Frequently Asked Questions
What is the safest neighborhood in Harlingen?
ZIP code 78553 has the highest safety score in Harlingen at 91/100 (grade A). Check the full report for details.
Is Harlingen water safe to drink?
Harlingen has an average water safety score of 80/100 (B). 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.