Neighborhood Report
Grade F
Lead Exceeds EPA Limit in 49 Areas — Dayton, OH
49 ZIP codes · 245 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
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.