Neighborhood Report
Grade B
Chico, CA Neighborhood Water Quality — Grade B
6 ZIP codes · 24 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-03
Water quality varies significantly across Chico, CA. We analyzed 6 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade B (83/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 4 | 67% |
| B | 2 | 33% |
| C | 0 | 0% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Chico ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 95927 | 87 | A | 4 | 0.0007 mg/L |
| 2 | 95929 | 87 | A | 4 | 0.0007 mg/L |
| 3 | 95976 | 87 | A | 4 | 0.0007 mg/L |
| 4 | 95926 | 85 | A | 4 | 0.0007 mg/L |
| 5 | 95928 | 75 | B | 4 | 0.0007 mg/L |
| 6 | 95973 | 75 | B | 4 | 0.0007 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 4 neighborhoods score better than county average
- 2 neighborhoods score worse than county average
EPA Violations
- 24 total violations across Chico
- 24 health-based violations
- 6 of 6 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Total Trihalomethanes (TTHM) | 18 | 6 |
| E. coli | 6 | 6 |
Frequently Asked Questions
What is the safest neighborhood in Chico?
ZIP code 95927 has the highest safety score in Chico at 87/100 (grade A). Check the full report for details.
Is Chico water safe to drink?
Chico has an average water safety score of 83/100 (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.