Montgomery County, Ohio
52 ZIP codes · Avg score 51/100 · Grade D · Updated
ZipCheckup grade for Montgomery County: D.
Several federal signals point to home-safety risks in this ZIP.
Across Montgomery County's 52 ZIP codes, EPA data shows a below-average compliance pattern - health-based violations are documented in several areas, and independent testing is a reasonable step for concerned households.
How Montgomery County Compares
How Montgomery County Compares
Montgomery County scores 9 points below the Ohio state average (60/100) and 22 points below the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Montgomery County, Ohio
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14 (asthma 11.5%, diabetes 14.5%)
Estimated additional annual cost per homeowner: $1,367, driven primarily by flood
Violation History (2024–2025)
→ Stable trendEPA violation counts by year across Montgomery County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 50 violations. Past 5 years: 51 total (51 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,367
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Montgomery County
Water safety remediation is a moderate expense relative to home values. Most homeowners can address issues through staged improvements over time.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Montgomery County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Montgomery County
8 community water systems serving Montgomery County.
- C
- D
- D
- D
- C
- D
Show all 8 water systems
- C
- C
25 total water systems serve Montgomery County.
Systems with the most violations in Montgomery County
5 water systems with recorded EPA violations.
- D
- D
- D
- C
- C
All ZIP Codes in Montgomery County
52 ZIP codes tracked in Montgomery County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 45435 | Dayton | 65 | C | 1 | — |
| 2 | 45327 | Germantown | 64 | C | 3 | $198K |
| 3 | 45449 | Dayton | 64 | C | 5 (1 health) | $148K |
| 4 | 45325 | Farmersville | 62 | C | 4 | $212K |
| 5 | 45345 | New Lebanon | 61 | C | 7 | $139K |
| 6 | 45377 | Vandalia | 50 | D | 0 | $192K |
| 7 | 45402 | Dayton | 50 | D | 0 | $106K |
| 8 | 45403 | Dayton | 50 | D | 0 | $74K |
| 9 | 45405 | Dayton | 50 | D | 0 | $74K |
| 10 | 45406 | Dayton | 50 | D | 0 | $82K |
| 11 | 45409 | Dayton | 50 | D | 0 | $231K |
| 12 | 45410 | Dayton | 50 | D | 0 | $98K |
| 13 | 45414 | Dayton | 50 | D | 0 | $163K |
| 14 | 45415 | Dayton | 50 | D | 1 | $169K |
| 15 | 45416 | Dayton | 50 | D | 0 | $76K |
| 16 | 45420 | Dayton | 50 | D | 0 | $116K |
| 17 | 45428 | Dayton | 50 | D | 0 | — |
| 18 | 45439 | Dayton | 50 | D | 0 | $120K |
| 19 | 45315 | Clayton | 49 | D | 4 | $184K |
| 20 | 45424 | Dayton | 49 | D | 1 | $169K |
| 21 | 45417 | Dayton | 46 | D | 5 | $73K |
| 22 | 45440 | Dayton | 46 | D | 4 (1 health) | $248K |
| 23 | 45426 | Dayton | 45 | D | 6 | $112K |
| 24 | 45322 | Englewood | 44 | D | 6 | $166K |
| 25 | 45342 | Miamisburg | 44 | D | 11 (2 health) | $207K |
| 26 | 45309 | Brookville | 41 | D | 12 (1 health) | $197K |
| 27 | 45343 | Miamisburg | — | — | — | |
| 28 | 45354 | Phillipsburg | — | — | 5 | $138K |
| 29 | 45400 | Dayton | — | — | — | |
| 30 | 45401 | Dayton | — | — | — | |
| 31 | 45408 | Dayton | — | — | — | |
| 32 | 45412 | Dayton | — | — | — | |
| 33 | 45413 | Dayton | — | — | — | |
| 34 | 45418 | Dayton | — | — | — | |
| 35 | 45422 | Dayton | — | — | — | |
| 36 | 45423 | Dayton | — | — | — | |
| 37 | 45427 | Dayton | — | — | — | |
| 38 | 45429 | Dayton | — | — | 0 | $221K |
| 39 | 45437 | Dayton | — | — | — | |
| 40 | 45441 | Dayton | — | — | — | |
| 41 | 45448 | Dayton | — | — | — | |
| 42 | 45454 | Dayton | — | — | — | |
| 43 | 45458 | Dayton | — | — | 3 (1 health) | $338K |
| 44 | 45459 | Dayton | — | — | 3 (1 health) | $276K |
| 45 | 45463 | Dayton | — | — | — | |
| 46 | 45469 | Dayton | — | — | 0 | — |
| 47 | 45470 | Dayton | — | — | — | |
| 48 | 45475 | Dayton | — | — | — | |
| 49 | 45479 | Dayton | — | — | — | |
| 50 | 45481 | Dayton | — | — | — | |
| 51 | 45482 | Dayton | — | — | — | |
| 52 | 45490 | Dayton | — | — | — |
Recommended Buyer Guides for Montgomery County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- Best Water Filters for Lead — Lead above EPA action level in 19 ZIP codes
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Montgomery County, Ohio
Overview
Montgomery County in Ohio covers 52 tracked ZIP records with an average Home Safety Score of D (51/100) across 26 scored records.
17 of 31 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 4 health-based violations appear in the available health breakdown.
← Back to Ohio Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
What You Can Do
Montgomery County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.