Lead Exceeds EPA Limit in 49 Areas - Dayton, OH
49 ZIP codes · 245 EPA violations
Data source: EPA SDWIS Last verified: 2026-07-19
ZipCheckup compares 49 ZIP codes across Dayton, OH. The area averages a grade F (37/100); 49 ZIP codes carry recorded EPA violations.
Water quality varies significantly across Dayton, OH. We analyzed 49 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade F (37/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 13 | 27% |
| F | 36 | 73% |
Neighborhood Rankings
Every ZIP code in Dayton ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 45402 | 44 | D | 5 | Exceeds EPA limit |
| 2 | 45403 | 44 | D | 5 | Exceeds EPA limit |
| 3 | 45404 | 44 | D | 5 | Exceeds EPA limit |
| 4 | 45405 | 44 | D | 5 | Exceeds EPA limit |
| 5 | 45406 | 44 | D | 5 | Exceeds EPA limit |
| 6 | 45409 | 44 | D | 5 | Exceeds EPA limit |
| 7 | 45417 | 44 | D | 5 | Exceeds EPA limit |
| 8 | 45428 | 44 | D | 5 | Exceeds EPA limit |
| 9 | 45429 | 44 | D | 5 | Exceeds EPA limit |
| 10 | 45430 | 44 | D | 5 | Exceeds EPA limit |
| 11 | 45432 | 44 | D | 5 | Exceeds EPA limit |
| 12 | 45434 | 44 | D | 5 | Exceeds EPA limit |
| 13 | 45458 | 44 | D | 5 | Exceeds EPA limit |
| 14 | 45414 | 39 | F | 5 | Exceeds EPA limit |
| 15 | 45415 | 39 | F | 5 | Exceeds EPA limit |
| 16 | 45419 | 39 | F | 5 | Exceeds EPA limit |
| 17 | 45420 | 39 | F | 5 | Exceeds EPA limit |
| 18 | 45424 | 39 | F | 5 | Exceeds EPA limit |
| 19 | 45426 | 39 | F | 5 | Exceeds EPA limit |
| 20 | 45431 | 39 | F | 5 | Exceeds EPA limit |
| 21 | 45439 | 39 | F | 5 | Exceeds EPA limit |
| 22 | 45440 | 39 | F | 5 | Exceeds EPA limit |
| 23 | 45449 | 39 | F | 5 | Exceeds EPA limit |
| 24 | 45459 | 39 | F | 5 | Exceeds EPA limit |
| 25 | 45400 | 32 | F | 5 | Exceeds EPA limit |
| 26 | 45401 | 32 | F | 5 | Exceeds EPA limit |
| 27 | 45408 | 32 | F | 5 | Exceeds EPA limit |
| 28 | 45410 | 32 | F | 5 | Exceeds EPA limit |
| 29 | 45412 | 32 | F | 5 | Exceeds EPA limit |
| 30 | 45413 | 32 | F | 5 | Exceeds EPA limit |
| 31 | 45416 | 32 | F | 5 | Exceeds EPA limit |
| 32 | 45418 | 32 | F | 5 | Exceeds EPA limit |
| 33 | 45422 | 32 | F | 5 | Exceeds EPA limit |
| 34 | 45423 | 32 | F | 5 | Exceeds EPA limit |
| 35 | 45427 | 32 | F | 5 | Exceeds EPA limit |
| 36 | 45433 | 32 | F | 5 | Exceeds EPA limit |
| 37 | 45435 | 32 | F | 5 | Exceeds EPA limit |
| 38 | 45437 | 32 | F | 5 | Exceeds EPA limit |
| 39 | 45441 | 32 | F | 5 | Exceeds EPA limit |
| 40 | 45448 | 32 | F | 5 | Exceeds EPA limit |
| 41 | 45454 | 32 | F | 5 | Exceeds EPA limit |
| 42 | 45463 | 32 | F | 5 | Exceeds EPA limit |
| 43 | 45469 | 32 | F | 5 | Exceeds EPA limit |
| 44 | 45470 | 32 | F | 5 | Exceeds EPA limit |
| 45 | 45475 | 32 | F | 5 | Exceeds EPA limit |
| 46 | 45479 | 32 | F | 5 | Exceeds EPA limit |
| 47 | 45481 | 32 | F | 5 | Exceeds EPA limit |
| 48 | 45482 | 32 | F | 5 | Exceeds EPA limit |
| 49 | 45490 | 32 | F | 5 | Exceeds EPA limit |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 9 neighborhoods score better than county average
- 40 neighborhoods score worse than county average
EPA Violations
- 245 total violations across Dayton
- 49 health-based violations
- 49 of 49 ZIP codes have violations
- 49 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Stage 2 DBP Rule | 98 | 49 |
| Surface Water Treatment Rule | 98 | 49 |
| Stage 1 DBP Rule | 49 | 49 |
Frequently Asked Questions
What is the safest neighborhood in Dayton?
ZIP code 45402 has the highest safety score in Dayton at 44/100 (grade D). Check the full report for details.
Is Dayton water safe to drink?
Dayton has an average water safety score of 37/100 (F). Water quality varies by neighborhood — 49 ZIP codes exceed EPA lead limits. Always check your specific ZIP code.
Related Pages
Data Sources
- EPA SDWIS
- U.S. Census Bureau
Updated daily.