Neighborhood Report
Grade C
Dorchester, MA 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 Dorchester, MA. We analyzed 3 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade C (68/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 1 | 33% |
| C | 2 | 67% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Dorchester ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 02121 | 73 | B | 0 | No data |
| 2 | 02122 | 65 | C | 0 | No data |
| 3 | 02125 | 65 | C | 0 | No data |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 0 neighborhoods score better than county average
- 3 neighborhoods score worse than county average
Frequently Asked Questions
What is the safest neighborhood in Dorchester?
ZIP code 02121 has the highest safety score in Dorchester at 73/100 (grade B). Check the full report for details.
Is Dorchester water safe to drink?
Dorchester has an average water safety score of 68/100 (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.