COUNTY REPORT KY

Warren County, Kentucky

10 ZIP codes · Avg score 63/100 · Grade C

ZipCheckup grade for Warren County: C.

A mixed picture - some signals here are worth your attention.

Somewhere in the middle: that is where the composite score for Warren County lands, across 10 tracked ZIP codes.

How Warren County Compares

Warren County63/100
Kentucky avg69/100
National avg73/100

How Warren County Compares

C
County Grade
63/100
Avg Safety Score
10
ZIP Codes
11
Water Systems

Warren County scores 6 points below the Kentucky state average (69/100) and 10 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

C
County Grade
63
Avg Safety Score
10
ZIP Codes
Best ZIP: 42103 (67/100)
Lowest ZIP: 42171 (57/100)
$273K
Median Home Value
$560
Avg Remediation (0.21% of home value)

ZIP Code Risk Map

Water Quality Map: Warren 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

Modeled additional annual cost estimate per homeowner: $733, largest modeled factor: Flood

36% of homes built before 1980 (lead paint was banned for residential use in 1978)

Infrastructure Overview

1989
Median Build Year
36%
Pre-1980 Housing
39/100
Infrastructure Stress Indicator
25%
ZIPs with High Infrastructure Stress
Moderate
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $733

Flood $600/yr
Energy Code Gap $304/yr
Water / Lead $88/yr

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

Housing Age Distribution

60,105 housing units in Warren County

Pre-1940 6%
1940–1959 8%
1960–1979 22%
1980–1999 29%
2000+ 36%

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 Warren County

$273K
Median Home Value
$560
Est. Remediation Cost
0.2%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Warren County can be compared with the median property value; actual costs vary by property.

Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.

Water systems mapped to Warren County ZIP codes

8 community water systems mapped to Warren County ZIP codes; EPA may list more systems serving the county.

Show all 8 water systems

11 water systems mapped to Warren County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in Warren County

2 water systems with violations in EPA records.

All ZIP Codes in Warren County

10 ZIP codes tracked in Warren County.

# ZIP Code City Safety Score Grade Violations Home Value
1 42103 Bowling Green 67 C 0 $304K
2 42104 Bowling Green 67 C 0 $283K
3 42122 Alvaton 67 C 0 $294K
4 42170 Woodburn 67 C 0 $307K
5 42274 Rockfield 67 C 0 $172K
6 42159 Oakland 58 C 14 (13 health) $263K
7 42101 Bowling Green 57 C 16 (14 health) $188K
8 42171 Smiths Grove 57 C 16 (14 health) $173K
9 42102 Bowling Green — — —
10 42128 Drake — — —

Recommended Buyer Guides for Warren County

Nothing on this list means a problem exists in your own home: the matches are drawn from county- and ZIP-level records, so a guide shows up because of an area signal, and only testing at your tap describes a specific household.

Overview

Warren County in Kentucky covers 10 tracked ZIP records with an average Home Safety Score of C (63/100) across 8 scored records.

3 of 8 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 14 health-based violations appear in the available health breakdown.

← 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 Warren County?
Warren County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Warren County?
We map 11 public water systems to 10 ZIP codes in our data for Warren County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Warren County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Warren County is flood. Across all modeled risk factors, the estimated average additional annual cost is $733 per homeowner; actual costs vary by home.
How old are homes in Warren County?
The median home build year in Warren County is 1989. 36% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.
How does Warren County compare to Kentucky?
Warren County has an average Home Safety Score of 63/100 under model 4.0.0, which is below the Kentucky state average of 69/100.

How to cite this page

APA ZipCheckup. (2026). Warren County, KY: HSS 63/100; 14 Health Violations. https://zipcheckup.com/county/kentucky/warren/
BibTeX
@misc{zipcheckup-county-kentucky-warren,
  author = {{ZipCheckup}},
  title  = {{Warren County, KY: HSS 63/100; 14 Health Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/kentucky/warren/}
}

Page version: October 2026.

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