Chattanooga, TN Neighborhood Water Quality - Grade B
20 ZIP codes · 60 EPA violations
Data source: EPA SDWIS Last verified: 2026-07-19
ZipCheckup compares 20 ZIP codes across Chattanooga, TN. The area averages a grade B (74/100); 20 ZIP codes carry recorded EPA violations.
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.