Union County, Kentucky
6 ZIP codes · Avg score 56/100 · Grade C · Updated 2026-06-03
Safe water is the norm for most of Union County's 6 ZIP codes — but a notable subset have documented violations that push the grade to the middle tier.
How Union County Compares
How Union County Compares
Union County scores 5 points below the Kentucky state average (61/100) and 12 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Union 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: $668, driven primarily by energy_code_gap
Infrastructure: 0.477% avg pipe failure probability, 75% of ZIPs at high risk
68.3% of homes built before 1978 (lead paint era)
Violation History (2023–2025)
→ Stable trendEPA violation counts by year across Union County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 45 violations. Past 5 years: 73 total (73 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: $668
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
6,036 housing units in Union 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 Union County
Remediation costs are relatively manageable for most homeowners in Union 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 Union County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Union County Water District | 6,117 | 28 |
| 2 | Morganfield Water Works | 5,170 | 28 |
| 3 | Sturgis Water Works | 3,490 | 24 |
| 4 | UNIONTOWN WATER & SEWER DEPT | 1,496 | 19 |
| 5 | Webster Company Water District | 5,940 | 15 |
8 total water systems serve Union County.
All ZIP Codes in Union County
6 ZIP codes tracked in Union County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 42461 | Uniontown | 65 | C | 4 (4 health) | $89K |
| 2 | 42437 | Morganfield | 58 | C | 15 (15 health) | $127K |
| 3 | 42457 | Smith Mills | 53 | D | 0 | — |
| 4 | 42460 | Sullivan | 53 | D | 0 | — |
| 5 | 42462 | Waverly | 53 | D | 0 | $143K |
| 6 | 42459 | Sturgis | 51 | D | 9 (7 health) | $94K |
Recommended Buyer Guides for Union County
Four sources — EPA, NSF, FEMA, CDC — drive the match.
- Best Lead Paint Test Kits — 68.3% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Union County, Kentucky
Overview
Union County in Kentucky covers 6 ZIP codes with an average Home Safety Score of C (56/100).
3 of 6 ZIP codes have recorded EPA violations. 26 health-based violations have been documented.
← 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.