Neighborhood Report
Grade B
Johnstown, PA Neighborhood Water Quality — Grade B
8 ZIP codes · 360 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Johnstown, PA. We analyzed 8 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade B (73/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 7 | 88% |
| C | 1 | 13% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Johnstown ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 15907 | 80 | B | 45 | 0.0050 mg/L |
| 2 | 15909 | 80 | B | 45 | 0.0050 mg/L |
| 3 | 15915 | 79 | B | 45 | 0.0050 mg/L |
| 4 | 15901 | 70 | B | 45 | 0.0050 mg/L |
| 5 | 15902 | 70 | B | 45 | 0.0050 mg/L |
| 6 | 15904 | 70 | B | 45 | 0.0050 mg/L |
| 7 | 15906 | 70 | B | 45 | 0.0050 mg/L |
| 8 | 15905 | 65 | C | 45 | 0.0050 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 8 neighborhoods score better than county average
- 0 neighborhoods score worse than county average
EPA Violations
- 360 total violations across Johnstown
- 24 health-based violations
- 8 of 8 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Consumer Confidence Report Rule | 72 | 8 |
| Lead and Copper Rule | 56 | 8 |
| E. coli | 40 | 8 |
| Revised Total Coliform Rule | 40 | 8 |
| Haloacetic Acids (HAA5) | 32 | 8 |
Frequently Asked Questions
What is the safest neighborhood in Johnstown?
ZIP code 15907 has the highest safety score in Johnstown at 80/100 (grade B). Check the full report for details.
Is Johnstown water safe to drink?
Johnstown has an average water safety score of 73/100 (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.