Neighborhood Report
Grade A
Chula Vista, CA Neighborhood Water Quality — Clean Compliance
8 ZIP codes · 0 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Chula Vista, CA. We analyzed 8 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade A (97/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 8 | 100% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Chula Vista ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 91909 | 99 | A | 0 | 0.0038 mg/L |
| 2 | 91912 | 99 | A | 0 | 0.0038 mg/L |
| 3 | 91913 | 99 | A | 0 | 0.0038 mg/L |
| 4 | 91914 | 99 | A | 0 | 0.0038 mg/L |
| 5 | 91921 | 99 | A | 0 | 0.0038 mg/L |
| 6 | 91911 | 95 | A | 0 | 0.0038 mg/L |
| 7 | 91915 | 95 | A | 0 | 0.0038 mg/L |
| 8 | 91910 | 90 | A | 0 | 0.0038 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 8 neighborhoods score better than county average
- 0 neighborhoods score worse than county average
Frequently Asked Questions
What is the safest neighborhood in Chula Vista?
ZIP code 91909 has the highest safety score in Chula Vista at 99/100 (grade A). Check the full report for details.
Is Chula Vista water safe to drink?
Chula Vista has an average water safety score of 97/100 (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.