Neighborhood Report
Grade B
Wilmington, DE Neighborhood Water Quality — Grade B
26 ZIP codes · 26 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Wilmington, DE. We analyzed 26 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade B (80/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 1 | 4% |
| B | 24 | 92% |
| C | 1 | 4% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Wilmington ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 19807 | 90 | A | 1 | 0.0022 mg/L |
| 2 | 19850 | 83 | B | 1 | 0.0022 mg/L |
| 3 | 19880 | 83 | B | 1 | 0.0022 mg/L |
| 4 | 19884 | 83 | B | 1 | 0.0022 mg/L |
| 5 | 19885 | 83 | B | 1 | 0.0022 mg/L |
| 6 | 19886 | 83 | B | 1 | 0.0022 mg/L |
| 7 | 19887 | 83 | B | 1 | 0.0022 mg/L |
| 8 | 19890 | 83 | B | 1 | 0.0022 mg/L |
| 9 | 19891 | 83 | B | 1 | 0.0022 mg/L |
| 10 | 19892 | 83 | B | 1 | 0.0022 mg/L |
| 11 | 19893 | 83 | B | 1 | 0.0022 mg/L |
| 12 | 19894 | 83 | B | 1 | 0.0022 mg/L |
| 13 | 19895 | 83 | B | 1 | 0.0022 mg/L |
| 14 | 19896 | 83 | B | 1 | 0.0022 mg/L |
| 15 | 19897 | 83 | B | 1 | 0.0022 mg/L |
| 16 | 19898 | 83 | B | 1 | 0.0022 mg/L |
| 17 | 19899 | 83 | B | 1 | 0.0022 mg/L |
| 18 | 19806 | 78 | B | 1 | 0.0022 mg/L |
| 19 | 19809 | 78 | B | 1 | 0.0022 mg/L |
| 20 | 19801 | 73 | B | 1 | 0.0022 mg/L |
| 21 | 19802 | 73 | B | 1 | 0.0022 mg/L |
| 22 | 19803 | 73 | B | 1 | 0.0022 mg/L |
| 23 | 19805 | 73 | B | 1 | 0.0022 mg/L |
| 24 | 19808 | 73 | B | 1 | 0.0022 mg/L |
| 25 | 19810 | 73 | B | 1 | 0.0022 mg/L |
| 26 | 19804 | 68 | C | 1 | 0.0022 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 19 neighborhoods score better than county average
- 7 neighborhoods score worse than county average
EPA Violations
- 26 total violations across Wilmington
- 0 health-based violations
- 26 of 26 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Consumer Confidence Report Rule | 26 | 26 |
Frequently Asked Questions
What is the safest neighborhood in Wilmington?
ZIP code 19807 has the highest safety score in Wilmington at 90/100 (grade A). Check the full report for details.
Is Wilmington water safe to drink?
Wilmington has an average water safety score of 80/100 (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.