Neighborhood Report
Grade C
Quincy, IL Neighborhood Water Quality — Grade C
3 ZIP codes · 6 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Quincy, IL. We analyzed 3 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade C (58/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 3 | 100% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Quincy ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 62306 | 62 | C | 2 | 0.0003 mg/L |
| 2 | 62301 | 56 | C | 2 | 0.0003 mg/L |
| 3 | 62305 | 56 | C | 2 | 0.0003 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
EPA Violations
- 6 total violations across Quincy
- 0 health-based violations
- 3 of 3 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Stage 1 DBP Rule | 3 | 3 |
| Surface Water Treatment Rule | 3 | 3 |
Frequently Asked Questions
What is the safest neighborhood in Quincy?
ZIP code 62306 has the highest safety score in Quincy at 62/100 (grade C). Check the full report for details.
Is Quincy water safe to drink?
Quincy has an average water safety score of 58/100 (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.