Greene County, Ohio
16 ZIP codes · Avg score 53/100 · Grade D · Updated 2026-06-03
Compared to state averages, Greene County scores below the baseline — health violations appear more frequently than the norm across its 16 ZIP codes.
How Greene County Compares
How Greene County Compares
Greene County scores 7 points below the Ohio state average (60/100) and 15 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Greene 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 (asthma 10.8%, diabetes 11.3%)
Estimated additional annual cost per homeowner: $1,474, driven primarily by energy_code_gap
Infrastructure: 0.447% avg pipe failure probability, 69% of ZIPs at high risk
72.2% 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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,474
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
65,778 housing units in Greene 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 Greene County
Remediation costs are relatively manageable for most homeowners in Greene 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 Greene County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Greene County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Dayton Public Water System | 141,407 | 30 |
| 2 | Wright State University | 8,948 | 30 |
| 3 | Dayton Va Bldg 410 | 125 | 30 |
| 4 | Woodbury Apartments Public Water System | 120 | 30 |
| 5 | Dayton Va Bldg 320 Pod a | 95 | 30 |
16 total water systems serve Greene County.
All ZIP Codes in Greene County
16 ZIP codes tracked in Greene County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 45370 | Spring Valley | 70 | B | 0 | $319K |
| 2 | 45387 | Yellow Springs | 70 | B | 0 | $288K |
| 3 | 45314 | Cedarville | 68 | C | 2 | $277K |
| 4 | 45335 | Jamestown | 67 | C | 4 | $187K |
| 5 | 45385 | Xenia | 65 | C | 0 | $197K |
| 6 | 45305 | Bellbrook | 64 | C | 2 (1 health) | $315K |
| 7 | 45307 | Bowersville | 64 | C | 2 | $115K |
| 8 | 45384 | Wilberforce | 53 | D | 0 | $207K |
| 9 | 45430 | Dayton | 44 | D | 5 (1 health) | $262K |
| 10 | 45432 | Dayton | 44 | D | 5 (1 health) | $182K |
| 11 | 45434 | Dayton | 44 | D | 5 (1 health) | $291K |
| 12 | 45164 | Port William | 40 | D | 0 | $80K |
| 13 | 45316 | Clifton | 40 | D | 0 | $232K |
| 14 | 45419 | Dayton | 39 | F | 5 (1 health) | $238K |
| 15 | 45431 | Dayton | 39 | F | 5 (1 health) | $198K |
| 16 | 45433 | Dayton | 32 | F | 5 (1 health) | — |
Recommended Buyer Guides for Greene County
Filtered against federal data, fitted to local risks.
- Best Water Filters for Lead — Lead above EPA action level in 6 ZIP codes
- Best Lead Paint Test Kits — 72.2% of homes built before 1978
- 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
Deep Dive Reports
Detailed analysis for Greene County, Ohio
Overview
Greene County in Ohio covers 16 ZIP codes with an average Home Safety Score of D (53/100).
10 of 16 ZIP codes have recorded EPA violations. 7 health-based violations have been documented.
← Back to Ohio water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.
What You Can Do
Greene 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.
Check for lead in your home
72.2% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.