Boyle County, Kentucky
7 ZIP codes · Avg score 55/100 · Grade C · Updated 2026-06-03
Covering 7 ZIP codes, Boyle County falls in the average tier for tap water safety — violations appear in a meaningful share of areas, and the data suggests quality depends heavily on which specific part of the county a household sits in.
How Boyle County Compares
How Boyle County Compares
Boyle County scores 6 points below the Kentucky state average (61/100) and 13 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Boyle County, Kentucky
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Estimated additional annual cost per homeowner: $559, driven primarily by energy_code_gap
Infrastructure: 0.34% avg pipe failure probability
56.4% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Boyle County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 2 violations. Past 5 years: 3 total (3 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $559
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
13,691 housing units in Boyle 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 Boyle County
Remediation costs are relatively manageable for most homeowners in Boyle 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 with Most Violations
Top 5 systems in Boyle County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | PARKSVILLE WATER DISTRICT | 4,261 | 0 |
| 2 | Danville City Water Works | 32,600 | 0 |
| 3 | MARION COUNTY WATER DISTRICT | 16,311 | 0 |
| 4 | EAST CASEY CO WATER DISTRICT | 12,460 | 0 |
| 5 | GARRARD CO WATER ASSOC INC | 14,806 | 0 |
10 total water systems serve Boyle County.
All ZIP Codes in Boyle County
7 ZIP codes tracked in Boyle County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 40422 | Danville | 70 | B | 0 | $214K |
| 2 | 40423 | Danville | 66 | C | 0 | — |
| 3 | 40464 | Parksville | 66 | C | 0 | $136K |
| 4 | 40328 | Gravel Switch | 53 | D | 0 | $83K |
| 5 | 40468 | Perryville | 53 | D | 0 | $149K |
| 6 | 40440 | Junction City | 40 | D | 0 | $126K |
| 7 | 40452 | Mitchellsburg | 40 | D | 0 | — |
Recommended Buyer Guides for Boyle County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Lead Paint Test Kits — 56.4% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Boyle County, Kentucky
Overview
Boyle County in Kentucky covers 7 ZIP codes with an average Home Safety Score of C (55/100).
No EPA violations recorded across any tracked ZIP codes in Boyle County.
← Back to Kentucky 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.