COUNTY REPORT KY

Oldham County, Kentucky

7 ZIP codes · Avg score 70/100 · Grade B · Updated

ZipCheckup grade for Oldham County: B.

This ZIP looks solid, with a few items worth a quick check.

Recent water monitoring in Oldham County shows 7 ZIP codes with consistently safe results.

How Oldham County Compares

Oldham County70/100
Kentucky avg69/100
National avg73/100

How Oldham County Compares

B
County Grade
70/100
Avg Safety Score
7
ZIP Codes
5
Water Systems

Oldham County scores 1 points above the Kentucky state average (69/100) and 3 points below 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:

B
County Grade
70
Avg Safety Score
7
ZIP Codes
Best ZIP: 40077 (83/100)
Lowest ZIP: 40056 (67/100)
$350K
Median Home Value
$2,143
Avg Remediation (61% of home value)

ZIP Code Risk Map

Water Quality Map: Oldham County, Kentucky

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Estimated additional annual cost per homeowner: $976, driven primarily by flood

45.8% of homes built before 1978 (lead paint era)

Infrastructure Overview

1990
Median Build Year
45.8%
Pre-1978 Housing
38/100
Infrastructure Stress Indicator
50%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

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: $976

Flood $760/yr
Energy Code Gap $330/yr
Water Infrastructure $100/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

20,039 housing units in Oldham County

Pre-1940 3%
1940–1959 4%
1960–1979 23%
1980–1999 37%
2000+ 32%

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 Oldham County

$350K
Median Home Value
$2,143
Est. Remediation Cost
0.6%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Oldham 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 Oldham County

5 community water systems serving Oldham County.

All ZIP Codes in Oldham County

7 ZIP codes tracked in Oldham County.

# ZIP Code City Safety Score Grade Violations Home Value
1 40077 Westport 83 B 0 $198K
2 40010 Buckner 67 C 0 $486K
3 40014 Crestwood 67 C 0 $382K
4 40026 Goshen 67 C 0 $426K
5 40031 La Grange 67 C 0 $316K
6 40056 Pewee Valley 67 C 0 $319K
7 40032 La Grange

Recommended Buyer Guides for Oldham County

Designed to find the guide that fits the county, not the other way around - the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.

Overview

Oldham County in Kentucky covers 7 tracked ZIP records with an average Home Safety Score of B (70/100) across 6 scored records.

The available EPA record reports 0 violations for 6 ZIP codes with a reported violation count.

← Back to Kentucky Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

Is water safe in Oldham County?
Oldham County receives a grade of B, indicating generally safe tap water across its 7 ZIP codes.
How many water systems serve Oldham County?
Oldham County is served by 5 public water systems that supply drinking water to residents across 7 ZIP codes.
What is the biggest environmental risk in Oldham County?
The primary environmental risk factor in Oldham County is flood. This contributes to an estimated additional annual cost of $976 per homeowner.
How old are homes in Oldham County?
The median home build year in Oldham County is 1990. 45.8% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Oldham County compare to Kentucky?
Oldham County has an average Home Safety Score of 70/100 under model 4.0.0, which is above the Kentucky state average of 69/100.

How to cite this page

APA ZipCheckup. (2026). Oldham County, KY Home Safety: 70/100. https://zipcheckup.com/county/kentucky/oldham/
BibTeX
@misc{zipcheckup-county-kentucky-oldham,
  author = {{ZipCheckup}},
  title  = {{Oldham County, KY Home Safety: 70/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/kentucky/oldham/}
}

Page version: August 2026.

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