Neighborhood Report
Grade A
Petaluma, CA Neighborhood Water Quality — Grade A
6 ZIP codes · 12 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Petaluma, CA. We analyzed 6 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade A (89/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 5 | 83% |
| B | 1 | 17% |
| C | 0 | 0% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Petaluma ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 94955 | 94 | A | 2 | 0.0004 mg/L |
| 2 | 94975 | 94 | A | 2 | 0.0004 mg/L |
| 3 | 94999 | 94 | A | 2 | 0.0004 mg/L |
| 4 | 94953 | 91 | A | 2 | 0.0004 mg/L |
| 5 | 94954 | 86 | A | 2 | 0.0004 mg/L |
| 6 | 94952 | 76 | B | 2 | 0.0004 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 5 neighborhoods score better than county average
- 1 neighborhoods score worse than county average
EPA Violations
- 12 total violations across Petaluma
- 6 health-based violations
- 6 of 6 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Stage 2 DBP Rule | 12 | 6 |
Frequently Asked Questions
What is the safest neighborhood in Petaluma?
ZIP code 94955 has the highest safety score in Petaluma at 94/100 (grade A). Check the full report for details.
Is Petaluma water safe to drink?
Petaluma has an average water safety score of 89/100 (A). 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.