McLean County, Kentucky
7 ZIP codes · Avg score 65/100 · Grade C · Updated 2026-06-03
Water monitoring across McLean County's 7 ZIP codes paints a mid-range picture — solid compliance in some zones, documented concerns in others; most violations on record are concentrated in specific prior years rather than spread evenly across the full compliance history, and the overall county grade has held steady in the middle tier without major shifts in either direction.
How McLean County Compares
How McLean County Compares
McLean County scores 4 points above the Kentucky state average (61/100) and 3 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: McLean 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: $1,199, driven primarily by flood
Infrastructure: 0.443% avg pipe failure probability, 50% of ZIPs at high risk
74.8% of homes built before 1978 (lead paint era)
Violation History (2021–2023)
→ Stable trendEPA violation counts by year across McLean County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 7 violations. Past 5 years: 17 total (17 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: $1,199
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
4,356 housing units in McLean 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 McLean County
Remediation costs are relatively manageable for most homeowners in McLean 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 McLean County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | BEECH GROVE WATER SYSTEM | 1,461 | 9 |
| 2 | Calhoun Water Works | 966 | 9 |
| 3 | Daviess Company Water District | 33,655 | 9 |
| 4 | North Mclean Company Water District | 2,934 | 9 |
| 5 | Livermore Water Works | 2,138 | 9 |
10 total water systems serve McLean County.
All ZIP Codes in McLean County
7 ZIP codes tracked in McLean County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 42352 | Livermore | 83 | B | 0 | $148K |
| 2 | 42372 | Sacramento | 83 | B | 0 | $102K |
| 3 | 42350 | Island | 75 | B | 0 | $129K |
| 4 | 42327 | Calhoun | 57 | C | 9 (8 health) | $169K |
| 5 | 42322 | Beech Grove | 53 | D | 0 | — |
| 6 | 42356 | Maple Mount | 53 | D | 0 | — |
| 7 | 42371 | Rumsey | 50 | D | 0 | $174K |
Recommended Buyer Guides for McLean County
If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations — federal data drives the order, not retailer arrangements.
- Best Lead Paint Test Kits — 74.8% 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 McLean County, Kentucky
Overview
McLean County in Kentucky covers 7 ZIP codes with an average Home Safety Score of C (65/100).
1 of 7 ZIP codes have recorded EPA violations. 8 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.