STATE REPORT KY 241 HEALTH VIOLATIONS

Kentucky Water Quality: 573 Violations in 947 ZIP Codes

947 ZIP codes · 337 water systems · State-specific plumbing code · Updated 2026-06-03

Data: EPA SDWIS, NWS, State plumbing boards, Rewiring America Last verified: 2026-06-03

947
ZIP Codes
337
Water Systems
159
ZIPs with Violations
State-specific
Plumbing Code
C · 61
Avg Safety Score
2
ZIPs Exceeding Lead Limit
26%
High Radon Risk (Zone 1)
#37
of 51 States
19%
ZIPs Rated A or B
17%
ZIPs with Violations
C
Kentucky average: 61/100 — ranked #37 of 51 states. 6 points below the national average (67). 17% 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.

14
A
165
B
412
C
352
D
4
F
85-10070-8455-6940-540-39

Home Safety Scores by State

Loading map…
F (0-49) D (50-64) C (65-74) B (75-84) A (85+)

Data: EPA SDWIS, FEMA NFIP, EPA Radon, USGS Earthquake Hazards, NIFC Wildfire • 2026-06-03

Top 10 Safest ZIP Codes in Kentucky

Highest Home Safety Scores in the state.

#ZIP CodeCityCountyScoreGrade
1 42020 AlmoCalloway 99 A
2 42032 ColumbusHickman 99 A
3 42088 WingoGraves 99 A
4 42021 ArlingtonCarlisle 95 A
5 42053 KevilBallard 95 A
6 42035 CunninghamCarlisle 94 A
7 42050 HickmanFulton 94 A
8 42025 BentonMarshall 90 A
9 42029 Calvert CityMarshall 90 A
10 42002 PaducahMcCracken 88 A

10 Lowest-Scoring ZIP Codes in Kentucky

#ZIP CodeCityCountyScoreGradeViolations
1 40059 ProspectJefferson 30 F 0
2 42713 BonnievilleHart 31 F 1
3 40165 ShepherdsvilleJefferson 35 F 0
4 40118 FairdaleJefferson 35 F 0
5 42782 SummersvilleGreen 40 D 0
6 42776 SonoraHart 40 D 0
7 42758 MannsvilleAdair 40 D 0
8 42753 KnifleyAdair 40 D 0
9 42746 HardyvilleHart 40 D 0
10 42742 GradyvilleMetcalfe 40 D 0

County Rankings

Water quality breakdown by county. 118 counties with data in Kentucky.

Loading county map…
F (0-49) D (50-64) C (65-74) B (75-84) A (85+)

County-level aggregation of ZIP code safety scores • EPA SDWIS, FEMA NFIP, EPA Radon, USGS, NIFC

CountyAvg ScoreGradeZIPsBest ZIPWorst ZIP
Shelby 74 B 6 40003 (83) 40076 (53)
Nelson 52 D 7 40004 (70) 40107 (40)
Trimble 74 B 4 40006 (83) 40055 (53)
Henry 63 C 10 40050 (83) 40075 (53)
Marion 46 D 7 40033 (69) 40063 (40)
Oldham 60 C 6 40010 (83) 40077 (50)
Spencer 70 B 1 40013 (70) 40013 (70)
Jefferson 61 C 78 40203 (70) 40059 (30)
Washington 66 C 5 40404 (82) 40061 (53)
Larue 58 C 5 42748 (76) 42764 (53)
Bullitt 52 D 3 40071 (65) 40110 (40)
Breckinridge 58 C 18 40143 (83) 42368 (53)
Meade 65 C 5 40108 (83) 40177 (45)
Grayson 64 C 7 42754 (81) 42762 (53)
Hardin 68 C 11 40159 (83) 42732 (53)
Whitley 64 C 8 40201 (83) 40771 (53)
Mercer 62 C 3 40372 (64) 40330 (60)
Nicholas 62 C 3 40311 (78) 41037 (53)
Powell 67 C 3 40312 (72) 40376 (63)
Rowan 58 C 3 40351 (67) 40317 (53)
Menifee 66 C 4 40322 (76) 40316 (53)
Bath 67 C 7 40374 (83) 40366 (53)
Scott 57 C 2 40324 (60) 40379 (53)
Boyle 55 C 7 40422 (70) 40452 (40)
Montgomery 62 C 4 40337 (83) 40353 (50)
Estill 67 C 2 40336 (70) 40472 (63)
Bourbon 52 D 5 40362 (67) 40357 (40)
Jessamine 52 D 3 40390 (59) 40356 (47)
Anderson 76 B 1 40342 (76) 40342 (76)
Woodford 56 C 3 40347 (64) 40383 (47)
Gallatin 63 C 5 41086 (78) 41052 (53)
Grant 65 C 9 41030 (83) 40359 (50)
Madison 62 C 8 40403 (77) 40488 (53)
Clark 63 C 2 40392 (70) 40391 (55)
Laurel 73 B 9 40741 (83) 40755 (53)
Rockcastle 61 C 8 40409 (83) 40492 (53)
Garrard 71 B 3 40446 (83) 40410 (53)
Lincoln 54 D 6 40419 (69) 42541 (40)
Owsley 57 C 5 40486 (63) 41386 (53)
Pulaski 54 D 13 42502 (66) 42564 (40)
Fayette 54 D 38 40507 (60) 40515 (50)
Franklin 62 C 9 40603 (64) 40601 (48)
Knox 61 C 14 40702 (80) 40943 (53)
Clay 57 C 7 40962 (70) 40983 (53)
Bell 58 C 11 40977 (71) 40939 (50)
Harlan 60 C 40 40855 (82) 40854 (50)
Letcher 61 C 20 41837 (81) 41848 (53)
Leslie 57 C 11 41749 (70) 41775 (53)
Perry 61 C 10 41721 (82) 41745 (53)
Pendleton 50 D 4 41040 (60) 41053 (40)
Bracken 65 C 5 41004 (83) 41061 (53)
Harrison 56 C 2 41031 (58) 41003 (53)
Boone 58 C 27 41005 (79) 41085 (50)
Campbell 69 C 1 41006 (69) 41006 (69)
Carroll 70 B 4 41045 (83) 41098 (63)
Kenton 57 C 1 41017 (57) 41017 (57)
Mason 70 B 5 41034 (83) 41096 (53)
Fleming 62 C 8 41039 (83) 41189 (53)
Robertson 66 C 1 41064 (66) 41064 (66)
Boyd 52 D 7 41129 (63) 41102 (41)
Johnson 59 C 17 41240 (73) 41257 (53)
Carter 61 C 8 41164 (68) 41173 (53)
Greenup 73 B 6 41139 (78) 41174 (63)
Lewis 65 C 3 41141 (78) 41166 (53)
Elliott 58 C 6 41171 (82) 41413 (53)
Lawrence 68 C 3 41230 (78) 41201 (63)
Martin 57 C 8 41224 (71) 41267 (50)
Magoffin 55 C 4 41465 (56) 41426 (53)
Floyd 58 C 39 41669 (83) 41666 (45)
Breathitt 66 C 7 41314 (82) 41310 (53)
Lee 54 D 3 41311 (56) 41397 (53)
Wolfe 56 C 4 41385 (63) 41365 (53)
Morgan 60 C 6 41472 (74) 41477 (53)
Knott 62 C 32 41822 (72) 41843 (53)
Pike 57 C 41 41522 (78) 41501 (43)
McCracken 77 B 4 42002 (88) 42086 (65)
Calloway 75 B 6 42020 (99) 42071 (63)
Carlisle 77 B 8 42021 (95) 42031 (65)
Ballard 74 B 5 42053 (95) 42087 (65)
Marshall 85 A 4 42025 (90) 42044 (73)
Graves 77 B 7 42088 (99) 42079 (65)
Livingston 63 C 7 42045 (83) 42083 (53)
Hickman 99 A 1 42032 (99) 42032 (99)
Crittenden 64 C 3 42064 (82) 42033 (53)
Lyon 70 B 3 42038 (83) 42037 (53)
Hopkins 68 C 15 42464 (83) 42453 (53)
Fulton 83 B 3 42050 (94) 42085 (73)
Warren 64 C 4 42102 (66) 42101 (60)
Allen 54 D 3 42164 (70) 42156 (40)
Butler 57 C 11 42261 (69) 42333 (53)
Monroe 44 D 8 42167 (59) 42157 (40)
Metcalfe 45 D 6 42129 (70) 42742 (40)
Barren 51 D 6 42142 (66) 42163 (40)
Simpson 81 B 2 42135 (83) 42134 (78)
Hart 46 D 10 42749 (70) 42713 (31)
Edmonson 57 C 6 42210 (68) 42285 (53)
Logan 65 C 7 42206 (82) 42339 (53)
Todd 64 C 8 42234 (82) 42280 (53)
Trigg 63 C 1 42211 (63) 42211 (63)
Christian 62 C 8 42241 (75) 42254 (53)
Daviess 67 C 10 42302 (83) 42377 (53)
Ohio 60 C 9 42347 (82) 42370 (53)
Muhlenberg 60 C 12 42337 (76) 42374 (53)
McLean 65 C 7 42352 (83) 42371 (50)
Hancock 72 B 3 42348 (83) 42355 (63)
Henderson 63 C 6 42419 (83) 42451 (50)
Webster 69 C 6 42409 (83) 42463 (53)
Caldwell 81 B 2 42411 (83) 42445 (78)
Union 56 C 6 42461 (65) 42459 (51)
Casey 47 D 3 42539 (62) 42566 (40)
Russell 54 D 5 42629 (70) 42741 (40)
Clinton 67 C 2 42602 (81) 42603 (53)
McCreary 57 C 7 42653 (72) 42649 (53)
Wayne 82 B 1 42633 (82) 42633 (82)
Cumberland 54 D 3 42717 (69) 42715 (40)
Taylor 64 C 2 42718 (66) 42719 (61)
Adair 40 D 4 42720 (40) 42758 (40)
Green 51 D 2 42743 (61) 42782 (40)

Most Common Contaminants in Kentucky

Contaminant / RuleCategoryZIPs AffectedViolationsHealth Risk
Surface Water Treatment Rule Treatment Technique 75 103 No
Consumer Confidence Report Rule Reporting 55 97 Yes
Total Trihalomethanes (TTHM) Disinfection Byproducts 46 89 Yes
Stage 2 DBP Rule Treatment Technique 28 33 Yes
Haloacetic Acids (HAA5) Disinfection Byproducts 27 121 Yes
Lead and Copper Rule Treatment Technique 18 28 No
Fecal Coliform Microbiological 15 29 Yes
Stage 1 DBP Rule Treatment Technique 8 8 No

Overview

We track water quality, weather alerts, plumbing regulations, and energy rebates for 947 ZIP codes across Kentucky, covering 337 community water systems that serve approximately 3,619,529 people.

159 of 947 ZIP codes (17%) have recorded EPA violations. 241 health-based violations have been documented.

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 Safety Score Violations Health-Based System
41840 Neon D 46 0 Fleming-neon Water Company
40445 Livingston C 17 0 Livingston Municipal Water Works
42450 Providence C 17 14 Providence Water Works
42437 Morganfield C 15 15 Union County Water District
42081 Smithland D 14 13 Smithland Water & Sewer
42256 Lewisburg C 14 7 Lewisburg Water Works
42210 Brownsville C 13 12 Edmonson Company Water District
40855 Lynch B 11 1 Lynch Water Works
40806 Baxter C 10 0 Black Mtn Utility/dayhoit
41501 Pikeville D 10 9 Mountain Water District

Areas with No Violations

ZIP Code City Safety Score System Population
40007 Bethlehem D Henry County Water District #2 17,716
40009 Bradfordsville D MARION COUNTY WATER DISTRICT 16,311
40010 Buckner B Oldham County Water District 38,409
40011 Campbellsburg B Henry County Water District #2 17,716
40012 Chaplin D BLOOMFIELD WATER & SEWER DEPT 5,771
40013 Coxs Creek B North Nelson Water District 13,365
40014 Crestwood C OLDHAM COUNTY WATER DISTRICT 38,409
40018 Eastwood D LOUISVILLE WATER COMPANY 764,769
40020 Fairfield D NORTH NELSON WATER DISTRICT 13,365
40022 Finchville C WEST SHELBY WATER DISTRICT 6,994

Home Safety Score

Average Home Safety Score for Kentucky: C (61/100)

Lead & Copper

  • Average lead level (90th percentile): 0.0035 mg/L (EPA action level: 0.015 mg/L)
  • 2 ZIP codes 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
40150 Lebanon Junction 843,961 D 1
40014 Crestwood 835,554 C 0
40013 Coxs Creek 831,605 B 0
40245 Louisville 824,832 C 0
40026 Goshen 820,894 D 0
40031 La Grange 820,894 C 0
40177 West Point 820,010 D 0
40023 Fisherville 817,809 D 0
40010 Buckner 803,178 B 0
40059 Prospect 803,178 F 0
40299 Louisville 794,049 C 0
40047 Mount Washington 787,055 D 0
40291 Louisville 787,055 C 0
40110 Clermont 781,000 D 0
40165 Shepherdsville 781,000 F 0
40018 Eastwood 764,769 D 0
40025 Glenview 764,769 D 0
40027 Harrods Creek 764,769 D 0
40041 Masonic Home 764,769 D 0
40056 Pewee Valley 764,769 D 0

Lowest Safety Scores

ZIP Code City Score Grade Violations
40059 Prospect 30 F 0
42713 Bonnieville 31 F 1
40118 Fairdale 35 F 0
40165 Shepherdsville 35 F 0
40020 Fairfield 40 D 0

Highest Safety Scores

ZIP Code City Score Grade Violations
42020 Almo 99 A 0
42032 Columbus 99 A 1
42088 Wingo 99 A 0
42021 Arlington 95 A 0
42053 Kevil 95 A 1

All 947 ZIP Codes in Kentucky

Data Sources

Updated daily.

Frequently Asked Questions

Is the water safe to drink in Kentucky?

Kentucky has 337 community water systems serving 3,619,529 people across 947 ZIP codes. There are 573 recorded violations, including 241 health-based. 159 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.

Is lead a concern in Kentucky's drinking water?

2 ZIP codes in Kentucky have lead levels exceeding the EPA action level of 0.015 mg/L.

What is the radon risk in Kentucky?

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

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