STATE REPORT KY 283 HEALTH VIOLATIONS

Kentucky Home Safety Profiles by ZIP

947 ZIP codes · 355 water systems · State-specific plumbing code · Updated

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData, NWS, State plumbing boards, Rewiring America

ZipCheckup tracks drinking-water and home-safety data for 947 ZIP codes across Kentucky, covering 355 public water systems that serve about 4,505,836 people. 482 ZIP codes carry at least one EPA violation on record.

947
ZIP Codes
355
Water Systems
482
ZIPs with Violations
State-specific
Plumbing Code
C · 69
Avg Safety Score
26%
High Radon Risk (Zone 1)
#30
of 50 States
48%
ZIPs Rated A or B
67%
ZIPs with Violations
C
Kentucky average: 69/100 - ranked #30 of 50 states. 4 points below the national average (73). 67% of ZIP codes have recorded violations.

Within Kentucky, SDWIS records show health-based exceedances at a higher-than-average rate - the state's low safety grade reflects compliance shortfalls spread across counties rather than one problem district.

Score Distribution

How Kentucky's 947 ZIP codes are distributed across safety grades.

0
A
99
B
64
C
45
D
0
F
85-10070-8455-6940-540-39

Home Safety Scores by State

Loading map…
F (0-39) D (40-54) C (55-69) B (70-84) A (85+)

Model 4.0.0 inputs: EPA SDWIS, UCMR5 PFAS, EPA radon zones, annual county AQI •

Top 10 Safest ZIP Codes in Kentucky

Highest Home Safety Scores in the state.

#ZIP CodeCityCountyScoreGrade
1 40040 MackvilleWashington 83 B
2 40077 WestportOldham 83 B
3 40121 Fort KnoxHardin 83 B
4 40965 MiddlesboroBell 83 B
5 41005 BurlingtonBoone 83 B
6 41042 FlorenceBoone 83 B
7 41048 HebronBoone 83 B
8 41059 MelbourneCampbell 83 B
9 41071 NewportCampbell 83 B
10 41073 BellevueCampbell 83 B

10 Lowest-Scoring ZIP Codes in Kentucky

#ZIP CodeCityCountyScoreGradeViolations
1 40150 Lebanon JunctionBullitt 49 D 2
2 40299 LouisvilleJefferson 50 D 0
3 40291 LouisvilleJefferson 50 D 0
4 40280 LouisvilleJefferson 50 D 0
5 40272 LouisvilleJefferson 50 D 0
6 40258 LouisvilleJefferson 50 D 0
7 40245 LouisvilleJefferson 50 D 0
8 40243 LouisvilleJefferson 50 D 0
9 40242 LouisvilleJefferson 50 D 0
10 40241 LouisvilleJefferson 50 D 0

County Rankings

Water quality breakdown by county. 120 counties with data in Kentucky.

Loading county map…
F (0-39) D (40-54) C (55-69) B (70-84) A (85+)

County-level aggregation of measured ZIP Home Safety Scores • EPA SDWIS, UCMR 5 PFAS, EPA radon zones, EPA AirData

CountyAvg ScoreGradeZIPsBest ZIPWorst ZIP
21001 N/A N/A 6 N/A N/A
21003 N/A N/A 3 N/A N/A
21005 N/A N/A 1 N/A N/A
21007 N/A N/A 6 N/A N/A
21009 N/A N/A 9 N/A N/A
21011 N/A N/A 5 N/A N/A
21013 82 B 11 40965 (83) 40977 (81)
21015 83 B 10 41005 (83) 41094 (83)
21017 N/A N/A 5 N/A N/A
21019 68 C 6 41101 (83) 41102 (61)
21021 N/A N/A 7 N/A N/A
21023 N/A N/A 5 N/A N/A
21025 N/A N/A 8 N/A N/A
21027 N/A N/A 13 N/A N/A
21029 50 D 8 40047 (50) 40150 (49)
21031 N/A N/A 6 N/A N/A
21033 N/A N/A 2 N/A N/A
21035 N/A N/A 6 N/A N/A
21037 79 B 11 41059 (83) 41007 (67)
21039 N/A N/A 4 N/A N/A
21041 N/A N/A 4 N/A N/A
21043 67 C 8 41164 (80) 41146 (62)
21045 N/A N/A 6 N/A N/A
21047 80 B 10 42217 (83) 42223 (67)
21049 N/A N/A 2 N/A N/A
21051 N/A N/A 8 N/A N/A
21053 N/A N/A 2 N/A N/A
21055 N/A N/A 4 N/A N/A
21057 N/A N/A 2 N/A N/A
21059 66 C 11 42355 (67) 42378 (64)
21061 74 B 6 42259 (74) 42210 (73)
21063 N/A N/A 2 N/A N/A
21065 N/A N/A 2 N/A N/A
21067 67 C 38 40502 (67) 40514 (65)
21069 N/A N/A 7 N/A N/A
21071 N/A N/A 34 N/A N/A
21073 N/A N/A 9 N/A N/A
21075 N/A N/A 2 N/A N/A
21077 N/A N/A 3 N/A N/A
21079 N/A N/A 3 N/A N/A
21081 N/A N/A 6 N/A N/A
21083 N/A N/A 11 N/A N/A
21085 N/A N/A 7 N/A N/A
21087 N/A N/A 3 N/A N/A
21089 71 B 7 41175 (83) 41144 (64)
21091 66 C 4 42348 (67) 42368 (64)
21093 76 B 14 40121 (83) 42701 (62)
21095 N/A N/A 26 N/A N/A
21097 N/A N/A 3 N/A N/A
21099 N/A N/A 8 N/A N/A
21101 N/A N/A 8 N/A N/A
21103 N/A N/A 10 N/A N/A
21105 N/A N/A 2 N/A N/A
21107 N/A N/A 11 N/A N/A
21109 N/A N/A 6 N/A N/A
21111 50 D 72 40023 (50) 40299 (50)
21113 65 C 4 40356 (65) 40390 (65)
21115 N/A N/A 17 N/A N/A
21117 N/A N/A 12 N/A N/A
21119 N/A N/A 16 N/A N/A
21121 N/A N/A 17 N/A N/A
21123 N/A N/A 2 N/A N/A
21125 N/A N/A 11 N/A N/A
21127 N/A N/A 7 N/A N/A
21129 N/A N/A 4 N/A N/A
21131 N/A N/A 17 N/A N/A
21133 N/A N/A 24 N/A N/A
21135 N/A N/A 5 N/A N/A
21137 N/A N/A 6 N/A N/A
21139 63 C 7 42028 (66) 42081 (54)
21141 N/A N/A 5 N/A N/A
21143 N/A N/A 2 N/A N/A
21145 83 B 5 42001 (83) 42086 (83)
21147 N/A N/A 7 N/A N/A
21149 N/A N/A 6 N/A N/A
21151 N/A N/A 6 N/A N/A
21153 N/A N/A 4 N/A N/A
21155 N/A N/A 6 N/A N/A
21157 N/A N/A 4 N/A N/A
21159 N/A N/A 7 N/A N/A
21161 N/A N/A 5 N/A N/A
21163 N/A N/A 7 N/A N/A
21165 N/A N/A 3 N/A N/A
21167 N/A N/A 3 N/A N/A
21169 N/A N/A 5 N/A N/A
21171 N/A N/A 5 N/A N/A
21173 N/A N/A 4 N/A N/A
21175 79 B 8 41352 (80) 41472 (75)
21177 N/A N/A 13 N/A N/A
21179 N/A N/A 8 N/A N/A
21181 N/A N/A 2 N/A N/A
21183 N/A N/A 11 N/A N/A
21185 70 B 7 40077 (83) 40056 (67)
21187 N/A N/A 3 N/A N/A
21189 N/A N/A 3 N/A N/A
21191 N/A N/A 2 N/A N/A
21193 81 B 28 41367 (83) 41201 (64)
21195 77 B 42 41503 (77) 41501 (71)
21197 N/A N/A 3 N/A N/A
21199 66 C 11 42501 (66) 42544 (65)
21201 N/A N/A 1 N/A N/A
21203 N/A N/A 6 N/A N/A
21205 N/A N/A 4 N/A N/A
21207 N/A N/A 2 N/A N/A
21209 N/A N/A 2 N/A N/A
21211 N/A N/A 6 N/A N/A
21213 83 B 2 42134 (83) 42134 (83)
21215 N/A N/A 1 N/A N/A
21217 N/A N/A 5 N/A N/A
21219 N/A N/A 6 N/A N/A
21221 N/A N/A 2 N/A N/A
21223 N/A N/A 4 N/A N/A
21225 N/A N/A 5 N/A N/A
21227 63 C 10 42103 (67) 42171 (57)
21229 82 B 4 40040 (83) 40069 (81)
21231 N/A N/A 1 N/A N/A
21233 N/A N/A 5 N/A N/A
21235 N/A N/A 7 N/A N/A
21237 N/A N/A 3 N/A N/A
21239 N/A N/A 3 N/A N/A

Most Common Contaminants in Kentucky

Contaminant / RuleCategoryZIPs AffectedViolationsHealth Risk
Surface Water Treatment Rule Treatment Technique 266 409 No
Haloacetic Acids (HAA5) Disinfection Byproducts 204 993 Yes
Consumer Confidence Report Rule Reporting 190 404 Yes
Total Trihalomethanes (TTHM) Disinfection Byproducts 188 563 Yes
Lead and Copper Rule Treatment Technique 107 269 No
Fecal Coliform Microbiological 86 253 Yes
Contaminant 0800 Other 73 206 Yes
Stage 2 DBP Rule Treatment Technique 61 77 Yes

Overview

We track multi-source home safety signals for 947 ZIP records across Kentucky. Home Safety Score model 4.0.0 is published for 208 scored records; missing required evidence suppresses the score.

The EPA snapshots used for this build directly map water systems to 724 ZIP records, covering 355 community water systems that serve approximately 4,505,836 people.

482 of 724 ZIP codes with a reported violation count in the available EPA record (67%) have recorded EPA violations. 283 health-based violations appear in the available health breakdown.

Plumbing Regulations

Kentucky follows the Kentucky State Plumbing Code (Current edition).

  • Plumbing code: State-specific (Current)
  • Homeowner DIY: Licensed plumber required
  • Water heater permit: Required
  • Annual backflow test: Required

Full Kentucky regulations →

Areas with Most Violations

ZIP Code City Home Safety Grade Violations Health-Based System
41537 Jenkins — 80 15 Mountain Water District
41837 Mayking — 70 4 Whitesburg Water Works
41858 Whitesburg — 70 4 Letcher County Water District
42404 Clay — 65 58 Webster Company Water District
41810 Cromona — 64 0 Fleming-neon Water Company
41825 Jackhorn — 64 0 Fleming-neon Water Company
41835 Mc Roberts — 64 0 Fleming-neon Water Company
41838 Millstone — 64 0 Letcher County Water District
41840 Neon — 64 0 Fleming-neon Water Company
42437 Morganfield — 40 38 Union County Water District

Areas with No Violations

ZIP Code City Home Safety Grade System Population
40007 Bethlehem — Henry County Water District #2 17,716
40009 Bradfordsville — Campbellsville Municipal Water 24,874
40010 Buckner C Oldham County Water District 38,409
40014 Crestwood C Oldham County Water District 38,409
40020 Fairfield — North Nelson Water District 13,365
40022 Finchville — West Shelby Water District 6,994
40023 Fisherville D Taylorsville Water Works 22,286
40025 Glenview D Louisville Water Company 806,997
40026 Goshen C Louisville Water Company 806,997
40031 La Grange C Oldham County Water District 38,409

Home Safety Score

Average Home Safety Score for Kentucky: C (69/100) across 208 scored of 947 tracked ZIP records.

Model 4.0.0 uses the canonical components water-compliance, pfas-mcl-screen, radon-zone, annual-aqi across 3 required domains. The sections below provide additional context and do not change that score. Missing required evidence suppresses the score, and a favorable result is not a property-level safety certification.

Lead & Copper

  • Average lead level (90th percentile): 0.0020 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 724 ZIP codes with known status exceed the EPA lead action level

Radon Risk

  • High risk (Zone 1): 249 ZIP codes (26%)
  • Moderate risk (Zone 2): 660 ZIP codes
  • Low risk (Zone 3): 38 ZIP codes

ZIP Code Reports for Kentucky

Largest Communities

ZIP Code City Population Safety Grade Violations
40014 Crestwood 887,849 C 0
40150 Lebanon Junction 886,189 D 2
40013 Coxs Creek 873,833 — 3
40031 La Grange 873,189 C 0
40245 Louisville 867,060 D 0
40026 Goshen 863,122 C 0
40177 West Point 860,827 — 0
40023 Fisherville 860,037 D 0
40299 Louisville 860,037 D 0
40047 Mount Washington 853,043 D 0
40291 Louisville 853,043 D 0
40165 Shepherdsville 846,988 D 1
40010 Buckner 845,406 C 0
40059 Prospect 845,406 D 0
40110 Clermont 820,362 D 0
40025 Glenview 806,997 D 0
40041 Masonic Home 806,997 D 0
40056 Pewee Valley 806,997 C 0
40109 Brooks 806,997 D 0
40118 Fairdale 806,997 D 0

Lowest Published Home Safety Scores

ZIP Code City Score Grade Violations
40150 Lebanon Junction 49 D 2
40023 Fisherville 50 D 0
40025 Glenview 50 D 0
40041 Masonic Home 50 D 0
40047 Mount Washington 50 D 0

Highest Published Home Safety Scores

ZIP Code City Score Grade Violations
40040 Mackville 83 B 0
40077 Westport 83 B 0
40121 Fort Knox 83 B 0
40965 Middlesboro 83 B 1
41005 Burlington 83 B 0

All 947 ZIP Codes in Kentucky

Data Sources

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

Largest water systems in Kentucky

The 12 biggest community water systems serving Kentucky, of 355 total.

Show all 12 water systems

Systems with the most violations in Kentucky

12 systems in Kentucky with the most recorded EPA violations.

Frequently Asked Questions

Is the water safe to drink in Kentucky?

Kentucky has 355 community water systems serving 4,505,836 people across 947 ZIP codes. There are 659 recorded violations, including 283 health-based. 482 of 947 ZIP codes have at least one violation.

What plumbing code does Kentucky follow?

Kentucky follows the State-specific plumbing code. A licensed plumber is generally required for plumbing work.

What is the radon risk in Kentucky?

26% of ZIP codes in Kentucky fall in EPA Radon Zone 1 (highest risk).

How to cite this page

APA ZipCheckup. (2026). Kentucky Home Safety Profiles by ZIP. https://zipcheckup.com/states/kentucky/
BibTeX 
@misc{zipcheckup-states-kentucky,
  author = {{ZipCheckup}},
  title  = {{Kentucky Home Safety Profiles by ZIP}},
  year   = {2026},
  url    = {https://zipcheckup.com/states/kentucky/}
}

Page version: August 2026.

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