Neighborhood Report
Grade D
Iowa City, IA Neighborhood Water Quality — Grade D
6 ZIP codes · 84 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Iowa City, IA. We analyzed 6 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade D (49/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 6 | 100% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Iowa City ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 52242 | 51 | D | 14 | 0.0040 mg/L |
| 2 | 52245 | 51 | D | 14 | 0.0040 mg/L |
| 3 | 52243 | 50 | D | 14 | 0.0040 mg/L |
| 4 | 52244 | 50 | D | 14 | 0.0040 mg/L |
| 5 | 52240 | 46 | D | 14 | 0.0040 mg/L |
| 6 | 52246 | 46 | D | 14 | 0.0040 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 0 neighborhoods score better than county average
- 6 neighborhoods score worse than county average
EPA Violations
- 84 total violations across Iowa City
- 0 health-based violations
- 6 of 6 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Consumer Confidence Report Rule | 24 | 6 |
| Surface Water Treatment Rule | 12 | 6 |
| Lead and Copper Rule | 12 | 6 |
| Contaminant 1032 | 6 | 6 |
| Total Trihalomethanes (TTHM) | 6 | 6 |
Frequently Asked Questions
What is the safest neighborhood in Iowa City?
ZIP code 52242 has the highest safety score in Iowa City at 51/100 (grade D). Check the full report for details.
Is Iowa City water safe to drink?
Iowa City has an average water safety score of 49/100 (D). 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.