Neighborhood Report
Grade F
Lead Exceeds EPA Limit in 2 Areas — Potomac, MD
2 ZIP codes · 0 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-03
Water quality varies significantly across Potomac, MD. We analyzed 2 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade F (34/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 0 | 0% |
| F | 2 | 100% |
Neighborhood Rankings
Every ZIP code in Potomac ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 20854 | 35 | F | 0 | Exceeds EPA limit |
| 2 | 20859 | 33 | F | 0 | Exceeds EPA limit |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 0 neighborhoods score better than county average
- 2 neighborhoods score worse than county average
Frequently Asked Questions
What is the safest neighborhood in Potomac?
ZIP code 20854 has the highest safety score in Potomac at 35/100 (grade F). Check the full report for details.
Is Potomac water safe to drink?
Potomac has an average water safety score of 34/100 (F). Water quality varies by neighborhood — 2 ZIP codes exceed EPA lead limits. Always check your specific ZIP code.
Related Pages
Data Sources
- EPA SDWIS
- U.S. Census Bureau
Updated daily.