Neighborhood Report
Grade C
Herndon, VA Neighborhood Water Quality — Clean Compliance
6 ZIP codes · 0 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Herndon, VA. We analyzed 6 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade C (66/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 6 | 100% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Herndon ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 20172 | 66 | C | 0 | 0.0012 mg/L |
| 2 | 20192 | 66 | C | 0 | 0.0012 mg/L |
| 3 | 20193 | 66 | C | 0 | 0.0012 mg/L |
| 4 | 22095 | 66 | C | 0 | 0.0012 mg/L |
| 5 | 20170 | 65 | C | 0 | 0.0012 mg/L |
| 6 | 20171 | 65 | C | 0 | 0.0012 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 6 neighborhoods score better than county average
- 0 neighborhoods score worse than county average
Frequently Asked Questions
What is the safest neighborhood in Herndon?
ZIP code 20172 has the highest safety score in Herndon at 66/100 (grade C). Check the full report for details.
Is Herndon water safe to drink?
Herndon has an average water safety score of 66/100 (C). 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.