Neighborhood Report
Grade B
Snohomish, WA Neighborhood Water Quality — Grade B
3 ZIP codes · 12 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Snohomish, WA. We analyzed 3 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade B (84/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 1 | 33% |
| B | 2 | 67% |
| C | 0 | 0% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Snohomish ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 98291 | 92 | A | 4 | 0.0031 mg/L |
| 2 | 98296 | 82 | B | 4 | 0.0031 mg/L |
| 3 | 98290 | 77 | B | 4 | 0.0031 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 1 neighborhoods score better than county average
- 2 neighborhoods score worse than county average
EPA Violations
- 12 total violations across Snohomish
- 0 health-based violations
- 3 of 3 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Haloacetic Acids (HAA5) | 9 | 3 |
| Total Trihalomethanes (TTHM) | 3 | 3 |
Frequently Asked Questions
What is the safest neighborhood in Snohomish?
ZIP code 98291 has the highest safety score in Snohomish at 92/100 (grade A). Check the full report for details.
Is Snohomish water safe to drink?
Snohomish has an average water safety score of 84/100 (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.