Neighborhood Report
Grade D
Fond Du Lac, WI Neighborhood Water Quality — Grade D
3 ZIP codes · 39 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Fond Du Lac, WI. We analyzed 3 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade D (46/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 3 | 100% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Fond Du Lac ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 54936 | 49 | D | 13 | 0.0095 mg/L |
| 2 | 54937 | 47 | D | 13 | 0.0095 mg/L |
| 3 | 54935 | 42 | D | 13 | 0.0095 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 0 neighborhoods score better than county average
- 3 neighborhoods score worse than county average
EPA Violations
- 39 total violations across Fond Du Lac
- 6 health-based violations
- 3 of 3 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Consumer Confidence Report Rule | 15 | 3 |
| Stage 2 DBP Rule | 9 | 3 |
| Lead and Copper Rule | 6 | 3 |
| Lead | 3 | 3 |
| Total Coliform | 3 | 3 |
Frequently Asked Questions
What is the safest neighborhood in Fond Du Lac?
ZIP code 54936 has the highest safety score in Fond Du Lac at 49/100 (grade D). Check the full report for details.
Is Fond Du Lac water safe to drink?
Fond Du Lac has an average water safety score of 46/100 (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.