STATE REPORT KS 844 HEALTH VIOLATIONS

Kansas Water Quality: 3.4K Violations in 749 ZIP Codes

749 ZIP codes · 799 water systems · IPC plumbing code · Updated 2026-06-03

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

749
ZIP Codes
799
Water Systems
500
ZIPs with Violations
IPC
Plumbing Code
C · 64
Avg Safety Score
3
ZIPs Exceeding Lead Limit
53%
High Radon Risk (Zone 1)
#31
of 51 States
33%
ZIPs Rated A or B
67%
ZIPs with Violations
C
Kansas average: 64/100 — ranked #31 of 51 states. 3 points below the national average (67). 67% of ZIP codes have recorded violations.

Even where Kansas counties show clean local records, the statewide aggregate lands below average — utility districts with violations are widespread enough to pull the overall safety grade into the low tier.

Score Distribution

How Kansas's 749 ZIP codes are distributed across safety grades.

1
A
246
B
320
C
166
D
16
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 Kansas

Highest Home Safety Scores in the state.

#ZIP CodeCityCountyScoreGrade
1 66088 Valley FallsSt. Louis 86 A
2 66010 Blue MoundLinn 83 B
3 66039 KincaidAnderson 83 B
4 66072 ParkerLinn 83 B
5 66092 WellsvilleFranklin 83 B
6 66507 Maple HillWabaunsee 83 B
7 66539 Silver LakeShawnee 83 B
8 66742 GasAllen 83 B
9 66751 La HarpeAllen 83 B
10 66761 PiquaWoodson 83 B

10 Lowest-Scoring ZIP Codes in Kansas

#ZIP CodeCityCountyScoreGradeViolations
1 67657 PalcoRooks 3 F 16
2 67879 TribuneGreeley 22 F 19
3 67548 La CrosseRush 28 F 11
4 67423 BeverlyLincoln 28 F 19
5 67451 HopeDickinson 29 F 10
6 67638 GaylordSmith 31 F 14
7 67870 SatantaHaskell 33 F 7
8 67837 CopelandGray 33 F 30
9 67748 OakleyLogan 33 F 13
10 67663 PlainvilleRooks 33 F 19

County Rankings

Water quality breakdown by county. 106 counties with data in Kansas.

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
Atchison 65 C 5 66436 (68) 66041 (61)
Douglas 62 C 7 66006 (68) 66044 (56)
Leavenworth 61 C 9 66027 (70) 66040 (42)
Doniphan 67 C 7 66094 (82) 66008 (53)
Linn 76 B 6 66010 (83) 66014 (53)
Wyandotte 62 C 16 66101 (66) 66103 (56)
Johnson 47 D 47 66021 (70) 66286 (40)
Anderson 73 B 7 66039 (83) 66857 (53)
Jefferson 72 B 8 66066 (81) 66016 (53)
Miami 78 B 5 66036 (82) 66064 (72)
Franklin 76 B 8 66092 (83) 66095 (67)
Shawnee 70 B 39 66539 (83) 66420 (53)
St. Louis 86 A 1 66088 (86) 66088 (86)
Wabaunsee 71 B 8 66507 (83) 66501 (53)
Marshall 57 C 12 66406 (66) 66412 (40)
Pottawatomie 61 C 9 66535 (70) 66426 (40)
Nemaha 61 C 8 66538 (70) 66415 (49)
Osage 75 B 9 66523 (81) 66451 (60)
Jackson 64 C 8 66419 (69) 66509 (54)
Brown 61 C 7 66424 (66) 66434 (47)
Geary 62 C 3 66442 (66) 66441 (59)
Riley 61 C 8 66531 (66) 66502 (51)
Bourbon 68 C 6 66779 (83) 66769 (53)
Wilson 74 B 4 66710 (82) 66717 (68)
Crawford 70 B 12 66780 (83) 66746 (53)
Cherokee 71 B 11 66773 (81) 66778 (53)
Montgomery 67 C 11 67347 (81) 67364 (53)
Neosho 68 C 8 66776 (83) 66772 (53)
Allen 74 B 5 66742 (83) 66749 (47)
Woodson 60 C 4 66761 (83) 66783 (50)
Greenwood 64 C 11 67137 (81) 67122 (53)
Lyon 80 B 7 66833 (83) 66801 (69)
Dickinson 52 D 11 67449 (69) 67451 (29)
Coffey 81 B 4 66839 (83) 66852 (76)
Marion 60 C 10 66861 (68) 67483 (40)
Butler 75 B 16 67017 (81) 67012 (53)
Chase 79 B 5 66862 (82) 66843 (74)
Morris 81 B 4 66873 (83) 66846 (79)
Cloud 64 C 6 67445 (68) 67417 (60)
Republic 55 C 10 66966 (70) 66935 (33)
Smith 51 D 5 66952 (65) 67638 (31)
Washington 62 C 11 66945 (68) 66946 (40)
Jewell 56 C 6 66936 (65) 66963 (33)
Sedgwick 77 B 50 67101 (83) 67002 (50)
Harper 71 B 7 67009 (82) 67150 (53)
Sumner 73 B 10 67022 (83) 67013 (48)
Cowley 75 B 9 67131 (83) 67102 (53)
Harvey 75 B 7 67062 (83) 67056 (54)
Pratt 46 D 5 67134 (66) 67066 (33)
Chautauqua 64 C 5 67360 (75) 67345 (53)
Kingman 63 C 8 67025 (70) 67106 (40)
Comanche 72 B 3 67029 (82) 67155 (53)
Kiowa 65 C 3 67054 (66) 67059 (64)
Barber 67 C 9 67065 (83) 67138 (50)
McPherson 65 C 9 67107 (69) 67428 (59)
Labette 69 C 9 67356 (81) 67341 (53)
Elk 72 B 4 67353 (81) 67346 (68)
Saline 64 C 6 67442 (70) 67448 (58)
Lincoln 51 D 4 67455 (70) 67423 (28)
Mitchell 52 D 6 67452 (68) 67478 (37)
Ottawa 58 C 5 67467 (69) 67470 (45)
Rice 60 C 8 67457 (66) 67512 (40)
Clay 65 C 5 67468 (70) 67458 (61)
Osborne 55 C 6 67437 (64) 67628 (40)
Ellsworth 61 C 5 67490 (66) 67454 (52)
Reno 70 B 14 67583 (83) 67585 (50)
Barton 60 C 6 67511 (67) 67530 (47)
Rush 49 D 8 67565 (66) 67548 (28)
Ness 60 C 7 67516 (66) 67518 (40)
Edwards 71 B 5 67563 (83) 67519 (49)
Pawnee 63 C 3 67574 (69) 67550 (56)
Stafford 66 C 4 67557 (80) 67576 (53)
Ellis 51 D 7 67637 (67) 67674 (40)
Phillips 64 C 7 67621 (66) 67661 (61)
Norton 62 C 4 67645 (66) 67629 (59)
Graham 54 D 4 67642 (62) 67659 (40)
Russell 61 C 8 67658 (66) 67649 (54)
Trego 57 C 3 67631 (66) 67656 (40)
Rooks 40 D 5 67675 (66) 67657 (3)
Decatur 57 C 4 67643 (66) 67635 (40)
Thomas 53 D 6 67701 (70) 67743 (40)
Rawlins 57 C 3 67730 (66) 67744 (40)
Cheyenne 49 D 3 67731 (66) 67756 (40)
Sherman 60 C 2 67735 (65) 67741 (54)
Gove 58 C 5 67738 (66) 67736 (43)
Sheridan 65 C 2 67740 (66) 67757 (64)
Logan 46 D 3 67764 (66) 67748 (33)
Wallace 56 C 3 67762 (66) 67761 (46)
Ford 56 C 6 67834 (65) 67882 (40)
Clark 71 B 3 67840 (82) 67865 (54)
Gray 55 C 5 67867 (66) 67837 (33)
Hamilton 61 C 3 67857 (65) 67836 (55)
Kearny 58 C 2 67860 (60) 67838 (55)
Lane 63 C 2 67850 (64) 67839 (62)
Meade 64 C 3 67869 (66) 67844 (61)
Finney 58 C 3 67851 (70) 67868 (40)
Hodgeman 62 C 2 67854 (64) 67849 (60)
Stanton 52 D 2 67862 (63) 67855 (40)
Seward 78 B 3 67859 (81) 67901 (74)
Wichita 52 D 2 67861 (64) 67863 (40)
Haskell 48 D 2 67877 (62) 67870 (33)
Scott 63 C 1 67871 (63) 67871 (63)
Greeley 22 F 1 67879 (22) 67879 (22)
Grant 70 B 1 67880 (70) 67880 (70)
Morton 73 B 3 67950 (83) 67953 (53)
Stevens 78 B 2 67951 (83) 67952 (72)

Most Common Contaminants in Kansas

Contaminant / RuleCategoryZIPs AffectedViolationsHealth Risk
Stage 2 DBP Rule Treatment Technique 287 393 Yes
Consumer Confidence Report Rule Reporting 225 575 Yes
Stage 1 DBP Rule Treatment Technique 220 339 No
Revised Total Coliform Rule Microbiological 206 471 Yes
Total Trihalomethanes (TTHM) Disinfection Byproducts 152 420 Yes
Lead and Copper Rule Treatment Technique 108 183 No
Surface Water Treatment Rule Treatment Technique 67 119 No
Haloacetic Acids (HAA5) Disinfection Byproducts 60 252 Yes

Overview

We track water quality, weather alerts, plumbing regulations, and energy rebates for 749 ZIP codes across Kansas, covering 799 community water systems that serve approximately 2,542,594 people.

500 of 749 ZIP codes (67%) have recorded EPA violations. 844 health-based violations have been documented.

Plumbing Regulations

Kansas follows the International Plumbing Code (2018 edition).

  • Plumbing code: IPC (2018)
  • Homeowner DIY: Licensed plumber required
  • Water heater permit: Required
  • Annual backflow test: Required

Full Kansas regulations →

Areas with Most Violations

ZIP Code City Safety Score Violations Health-Based System
67401 Salina C 58 1 City of Salina,
67402 Salina C 58 1 City of Salina,
67420 Beloit D 55 45 City of Beloit,
67526 Ellinwood C 49 1 City of Ellinwood,
66733 Erie C 42 0 Neosho Company Rwd 1c
67028 Coats D 38 0 City of Coats,
66843 Cedar Point B 36 3 City of Cedar Point,
67842 Ford D 35 18 City of Ford,
67446 Glen Elder D 32 23 Mitchell Company Rwd 2
67581 Sylvia C 32 20 City of Sylvia,

Areas with No Violations

ZIP Code City Safety Score System Population
66008 Bendena D Doniphan Company Rwd 5 1,457
66010 Blue Mound B Linn Company Rwd 2 1,960
66013 Bucyrus D Water District 1 of Johnson Company 482,000
66014 Centerville D Anderson Company Rwd 1c 2,112
66015 Colony B Anderson Company Rwd 5 2,093
66016 Cummings D Atchison Company Rwd 5c 3,690
66018 De Soto D Water District 1 of Johnson Company 482,000
66021 Edgerton B City of Edgerton, 1,741
66023 Effingham C Atchison Company Rwd 5c 3,690
66027 Fort Leavenworth B Leavenworth Water Department 38,757

Home Safety Score

Average Home Safety Score for Kansas: C (64/100)

Lead & Copper

  • Average lead level (90th percentile): 0.0029 mg/L (EPA action level: 0.015 mg/L)
  • 3 ZIP codes exceed the EPA lead action level

Radon Risk

  • High risk (Zone 1): 396 ZIP codes (53%)
  • Moderate risk (Zone 2): 352 ZIP codes
  • Low risk (Zone 3): 0 ZIP codes

ZIP Code Reports for Kansas

Largest Communities

ZIP Code City Population Safety Grade Violations
66030 Gardner 662,848 B 0
66109 Kansas City 645,462 C 1
66062 Olathe 637,165 D 3
66101 Kansas City 634,960 C 1
66102 Kansas City 634,960 C 1
66103 Kansas City 634,960 C 1
66104 Kansas City 634,960 C 1
66105 Kansas City 634,960 C 1
66106 Kansas City 634,960 C 1
66110 Kansas City 634,960 C 1
66111 Kansas City 634,960 C 1
66112 Kansas City 634,960 C 1
66115 Kansas City 634,960 C 1
66117 Kansas City 634,960 C 1
66118 Kansas City 634,960 C 1
66119 Kansas City 634,960 C 1
66160 Kansas City 634,960 C 1
66061 Olathe 631,471 D 3
66085 Stilwell 625,014 D 0
66210 Overland Park 625,014 D 0

Lowest Safety Scores

ZIP Code City Score Grade Violations
67657 Palco 3 F 16
67879 Tribune 22 F 19
67423 Beverly 28 F 19
67548 La Crosse 28 F 11
67451 Hope 29 F 10

Highest Safety Scores

ZIP Code City Score Grade Violations
66088 Valley Falls 86 A 4
66010 Blue Mound 83 B 0
66039 Kincaid 83 B 1
66072 Parker 83 B 0
66092 Wellsville 83 B 0

All 749 ZIP Codes in Kansas

Data Sources

Updated daily.

Frequently Asked Questions

Is the water safe to drink in Kansas?

Kansas has 799 community water systems serving 2,542,594 people across 749 ZIP codes. There are 3,375 recorded violations, including 844 health-based. 500 of 749 ZIP codes have at least one violation.

What plumbing code does Kansas follow?

Kansas follows the IPC plumbing code. A licensed plumber is generally required for plumbing work.

Is lead a concern in Kansas's drinking water?

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

What is the radon risk in Kansas?

53% of ZIP codes in Kansas fall in EPA Radon Zone 1 (highest risk).

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