Neighborhood Report
Grade B
Chattanooga, TN Neighborhood Water Quality — Grade B
20 ZIP codes · 60 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Chattanooga, TN. We analyzed 20 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade B (74/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 13 | 65% |
| C | 7 | 35% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Chattanooga ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 37401 | 79 | B | 3 | 0.0010 mg/L |
| 2 | 37402 | 79 | B | 3 | 0.0010 mg/L |
| 3 | 37409 | 79 | B | 3 | 0.0010 mg/L |
| 4 | 37414 | 79 | B | 3 | 0.0010 mg/L |
| 5 | 37422 | 79 | B | 3 | 0.0010 mg/L |
| 6 | 37424 | 79 | B | 3 | 0.0010 mg/L |
| 7 | 37450 | 79 | B | 3 | 0.0010 mg/L |
| 8 | 37403 | 74 | B | 3 | 0.0010 mg/L |
| 9 | 37406 | 74 | B | 3 | 0.0010 mg/L |
| 10 | 37407 | 74 | B | 3 | 0.0010 mg/L |
| 11 | 37408 | 74 | B | 3 | 0.0010 mg/L |
| 12 | 37410 | 74 | B | 3 | 0.0010 mg/L |
| 13 | 37416 | 74 | B | 3 | 0.0010 mg/L |
| 14 | 37404 | 69 | C | 3 | 0.0010 mg/L |
| 15 | 37405 | 69 | C | 3 | 0.0010 mg/L |
| 16 | 37411 | 69 | C | 3 | 0.0010 mg/L |
| 17 | 37415 | 69 | C | 3 | 0.0010 mg/L |
| 18 | 37419 | 69 | C | 3 | 0.0010 mg/L |
| 19 | 37412 | 64 | C | 3 | 0.0010 mg/L |
| 20 | 37421 | 64 | C | 3 | 0.0010 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 13 neighborhoods score better than county average
- 7 neighborhoods score worse than county average
EPA Violations
- 60 total violations across Chattanooga
- 0 health-based violations
- 20 of 20 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Surface Water Treatment Rule | 60 | 20 |
Frequently Asked Questions
What is the safest neighborhood in Chattanooga?
ZIP code 37401 has the highest safety score in Chattanooga at 79/100 (grade B). Check the full report for details.
Is Chattanooga water safe to drink?
Chattanooga has an average water safety score of 74/100 (B). 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.