Neighborhood Report
Grade C
Greenwich, CT Neighborhood Water Quality — Clean Compliance
3 ZIP codes · 0 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Greenwich, CT. We analyzed 3 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade C (59/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 3 | 100% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Greenwich ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 06836 | 66 | C | 0 | 0.0012 mg/L |
| 2 | 06830 | 55 | C | 0 | 0.0012 mg/L |
| 3 | 06831 | 55 | C | 0 | 0.0012 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
Frequently Asked Questions
What is the safest neighborhood in Greenwich?
ZIP code 06836 has the highest safety score in Greenwich at 66/100 (grade C). Check the full report for details.
Is Greenwich water safe to drink?
Greenwich has an average water safety score of 59/100 (C). 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.