Neighborhood Report
Grade C
Marion, OH Neighborhood Water Quality — Grade C
4 ZIP codes · 12 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Marion, OH. We analyzed 4 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade C (62/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 4 | 100% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Marion ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 43301 | 62 | C | 3 | 0.0037 mg/L |
| 2 | 43306 | 62 | C | 3 | 0.0037 mg/L |
| 3 | 43307 | 62 | C | 3 | 0.0037 mg/L |
| 4 | 43302 | 61 | C | 3 | 0.0037 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 4 neighborhoods score better than county average
- 0 neighborhoods score worse than county average
EPA Violations
- 12 total violations across Marion
- 0 health-based violations
- 4 of 4 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Surface Water Treatment Rule | 12 | 4 |
Frequently Asked Questions
What is the safest neighborhood in Marion?
ZIP code 43301 has the highest safety score in Marion at 62/100 (grade C). Check the full report for details.
Is Marion water safe to drink?
Marion has an average water safety score of 62/100 (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.