Washington County, Kentucky
4 ZIP codes · Avg score 82/100 · Grade B · Updated
ZipCheckup grade for Washington County: B.
This ZIP looks solid, with a few items worth a quick check.
Across all 4 ZIP codes in Washington County, tap water consistently meets or exceeds federal safety standards.
How Washington County Compares
How Washington County Compares
Washington County scores 13 points above the Kentucky state average (69/100) and 9 points above 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:
Key Risk Factors
Estimated additional annual cost per homeowner: $1,050, driven primarily by flood
56% of homes built before 1978 (lead paint era)
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: $1,050
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
4,928 housing units in Washington 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 Washington County
Remediation costs are relatively manageable for most homeowners in Washington 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.
Water systems serving Washington County
5 community water systems serving Washington County.
- B
- B
- B
- B
- B
Systems with the most violations in Washington County
3 water systems with recorded EPA violations.
- B
- B
- B
All ZIP Codes in Washington County
4 ZIP codes tracked in Washington County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 40040 | Mackville | 83 | B | 0 | $144K |
| 2 | 40078 | Willisburg | 82 | B | 2 (1 health) | $162K |
| 3 | 40069 | Springfield | 81 | B | 6 (2 health) | $173K |
| 4 | 40061 | Saint Catharine | — | — | — |
Recommended Buyer Guides for Washington 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 Lead Paint Test Kits — 56% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- 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 Washington County, Kentucky
Overview
Washington County in Kentucky covers 4 tracked ZIP records with an average Home Safety Score of B (82/100) across 3 scored records.
2 of 3 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 2 health-based violations appear in the available health breakdown.
← Back to Kentucky 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.