Rockcastle County, Kentucky
8 ZIP codes · Avg score 61/100 · Grade C · Updated 2026-06-03
Unlike top-rated counties, Rockcastle County's 8 ZIP codes carry a fair number of documented violations — chlorine compliance and disinfection byproduct limits are the categories most often cited in recent data.
How Rockcastle County Compares
How Rockcastle County Compares
Rockcastle County scores 0 points above the Kentucky state average (61/100) and 7 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Rockcastle 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: $868, driven primarily by wildfire
Infrastructure: 0.322% avg pipe failure probability, 17% of ZIPs at high risk
52.2% of homes built before 1978 (lead paint era)
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: $868
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
12,963 housing units in Rockcastle 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 Rockcastle County
Remediation costs are relatively manageable for most homeowners in Rockcastle 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 Rockcastle County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Mt Vernon Water Works | 4,951 | 17 |
| 2 | Kentucky American Water - Eastern Rockca | 1,732 | 17 |
| 3 | Livingston Municipal Water Works | 529 | 17 |
| 4 | Brodhead Water Works | 1,613 | 0 |
| 5 | Wood Creek Water District | 14,892 | 0 |
7 total water systems serve Rockcastle County.
All ZIP Codes in Rockcastle County
8 ZIP codes tracked in Rockcastle County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 40409 | Brodhead | 83 | B | 0 | $116K |
| 2 | 40456 | Mount Vernon | 63 | C | 0 | $141K |
| 3 | 40729 | East Bernstadt | 63 | C | 0 | $95K |
| 4 | 40445 | Livingston | 61 | C | 17 | $86K |
| 5 | 40447 | Mc Kee | 55 | C | 0 | $102K |
| 6 | 40460 | Orlando | 53 | D | 0 | $80K |
| 7 | 40473 | Renfro Valley | 53 | D | 0 | — |
| 8 | 40492 | Wildie | 53 | D | 0 | — |
Recommended Buyer Guides for Rockcastle 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 — 52.2% of homes built before 1978
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Rockcastle County, Kentucky
Overview
Rockcastle County in Kentucky covers 8 ZIP codes with an average Home Safety Score of C (61/100).
1 of 8 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← 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.