Neighborhood Report
Grade C
Ann Arbor, MI Neighborhood Water Quality — Grade C
8 ZIP codes · 56 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Ann Arbor, MI. We analyzed 8 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 | 8 | 100% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Ann Arbor ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 48105 | 65 | C | 7 | 0.0023 mg/L |
| 2 | 48108 | 65 | C | 7 | 0.0023 mg/L |
| 3 | 48106 | 61 | C | 7 | 0.0023 mg/L |
| 4 | 48107 | 61 | C | 7 | 0.0023 mg/L |
| 5 | 48109 | 61 | C | 7 | 0.0023 mg/L |
| 6 | 48113 | 61 | C | 7 | 0.0023 mg/L |
| 7 | 48103 | 60 | C | 7 | 0.0023 mg/L |
| 8 | 48104 | 60 | C | 7 | 0.0023 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 6 neighborhoods score better than county average
- 2 neighborhoods score worse than county average
EPA Violations
- 56 total violations across Ann Arbor
- 0 health-based violations
- 8 of 8 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Total Trihalomethanes (TTHM) | 16 | 8 |
| Surface Water Treatment Rule | 16 | 8 |
| Consumer Confidence Report Rule | 16 | 8 |
| Stage 1 DBP Rule | 8 | 8 |
Frequently Asked Questions
What is the safest neighborhood in Ann Arbor?
ZIP code 48105 has the highest safety score in Ann Arbor at 65/100 (grade C). Check the full report for details.
Is Ann Arbor water safe to drink?
Ann Arbor 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.