Miami County, Ohio
14 ZIP codes · Avg score 59/100 · Grade C · Updated
ZipCheckup grade for Miami County: C.
A mixed picture - some signals here are worth your attention.
Tracking 14 ZIP codes in Miami County reveals a mixed picture - tap water quality varies meaningfully by location.
How Miami County Compares
How Miami County Compares
Miami County scores 1 points below the Ohio state average (60/100) and 14 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: Miami County, Ohio
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.6 (asthma 10.8%, diabetes 12.7%)
Estimated additional annual cost per homeowner: $1,359, driven primarily by flood
77.2% of homes built before 1978 (lead paint era)
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: $1,359
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
47,156 housing units in Miami County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Miami County
Remediation costs are relatively manageable for most homeowners in Miami County, representing a small fraction of property value.
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 Miami County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Miami County
8 community water systems serving Miami County.
- D
- C
- C
- C
- D
- C
Show all 8 water systems
- C
13 total water systems serve Miami County.
Systems with the most violations in Miami County
5 water systems with recorded EPA violations.
- C
- C
- C
All ZIP Codes in Miami County
14 ZIP codes tracked in Miami County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 45339 | Ludlow Falls | 65 | C | 2 | $233K |
| 2 | 45308 | Bradford | 64 | C | 4 | $165K |
| 3 | 45356 | Piqua | 64 | C | 4 | $145K |
| 4 | 45373 | Troy | 62 | C | 11 | $234K |
| 5 | 45371 | Tipp City | 50 | D | 0 | $272K |
| 6 | 45383 | West Milton | 49 | D | 1 | $149K |
| 7 | 45312 | Casstown | — | — | $254K | |
| 8 | 45317 | Conover | — | — | 0 | $259K |
| 9 | 45318 | Covington | — | — | 10 | $176K |
| 10 | 45326 | Fletcher | — | — | $149K | |
| 11 | 45337 | Laura | — | — | 3 (1 health) | $226K |
| 12 | 45359 | Pleasant Hill | — | — | 1 | $187K |
| 13 | 45361 | Potsdam | — | — | $117K | |
| 14 | 45374 | Troy | — | — | — |
Recommended Buyer Guides for Miami County
Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance - guides surface only when county data warrants them.
- Best Lead Paint Test Kits — 77.2% of homes built before 1978
- 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 Miami County, Ohio
Overview
Miami County in Ohio covers 14 tracked ZIP records with an average Home Safety Score of C (59/100) across 6 scored records.
8 of 10 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 1 health-based violation 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.