Neighborhood Report
Grade C
Rock Island, IL Neighborhood Water Quality — Grade C
3 ZIP codes · 15 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Rock Island, IL. We analyzed 3 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade C (56/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 2 | 67% |
| D | 1 | 33% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Rock Island ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 61204 | 58 | C | 5 | 0.0060 mg/L |
| 2 | 61299 | 58 | C | 5 | 0.0060 mg/L |
| 3 | 61201 | 53 | D | 5 | 0.0060 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
- 15 total violations across Rock Island
- 0 health-based violations
- 3 of 3 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Lead | 3 | 3 |
| Contaminant 2020 | 3 | 3 |
| Total Trihalomethanes (TTHM) | 3 | 3 |
| Stage 1 DBP Rule | 3 | 3 |
| Surface Water Treatment Rule | 3 | 3 |
Frequently Asked Questions
What is the safest neighborhood in Rock Island?
ZIP code 61204 has the highest safety score in Rock Island at 58/100 (grade C). Check the full report for details.
Is Rock Island water safe to drink?
Rock Island has an average water safety score of 56/100 (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.