waterbycounty

Kansas Water Quality

Drinking water data for all 105 counties.

Avg Water Score

42.6

State Grade

D

Counties with Data

105

of 105 total

All Kansas Counties

CountyWater Score
Anderson County86.0
Atchison County86.0
Cheyenne County86.0
Clay County86.0
Cloud County86.0
Coffey County86.0
Cowley County86.0
Decatur County86.0
Douglas County86.0
Grant County86.0
Harvey County86.0
Hodgeman County86.0
Jackson County86.0
Kiowa County86.0
Lane County86.0
Leavenworth County86.0
McPherson County86.0
Meade County86.0
Morris County86.0
Morton County86.0
Ness County86.0
Rawlins County86.0
Scott County86.0
Sedgwick County86.0
Seward County86.0
Sheridan County86.0
Sherman County86.0
Stanton County86.0
Stevens County86.0
Thomas County86.0
Trego County86.0
Wallace County86.0
Wichita County86.0
Wyandotte County86.0
Johnson County71.3
Saline County67.8
Riley County65.6
Neosho County60.8
Lyon County52.5
Finney County52.1
Nemaha County46.9
Shawnee County42.1
Geary County41.7
Allen County41.4
Ellis County40.9
Jefferson County38.7
Ottawa County37.7
Crawford County37.5
Kingman County35.2
Butler County34.1
Osage County33.8
Pawnee County33.6
Barber County32.7
Barton County31.5
Clark County30.7
Pottawatomie County28.5
Bourbon County27.3
Phillips County27.1
Cherokee County26.4
Harper County25.3
Miami County25.1
Franklin County23.4
Marshall County23.3
Hamilton County23.2
Washington County21.5
Ford County21.4
Russell County20.5
Brown County20.4
Linn County19.1
Stafford County17.8
Sumner County17.2
Reno County15.8
Ellsworth County15.6
Montgomery County15.2
Marion County15.0
Labette County14.9
Rice County14.4
Comanche County14.3
Dickinson County13.8
Graham County13.0
Wilson County9.8
Doniphan County9.7
Kearny County9.6
Wabaunsee County8.9
Smith County7.6
Pratt County7.1
Edwards County6.8
Haskell County6.8
Greenwood County6.7
Norton County6.0
Chase County5.7
Gove County5.0
Rush County4.1
Gray County3.8
Logan County3.6
Republic County3.6
Chautauqua County3.1
Rooks County2.7
Elk County2.4
Woodson County2.1
Greeley County1.8
Mitchell County1.7
Osborne County1.6
Lincoln County1.1
Jewell County0.6

Concerned about your water quality?

Berkey water filters remove contaminants at home.

Shop Filters →

Sponsored

Frequently Asked Questions

Which county in Kansas has the best water quality?
Anderson County has the highest water quality score in Kansas at 86.0/100 (Grade: A), based on EPA SDWIS data.
Which county in Kansas has the most water violations?
Jewell County has among the lowest water quality scores in Kansas at 0.6/100. See the individual county page for detailed violation history.
Is the tap water safe to drink in Kansas?
Kansas has an average water quality score of 42.6/100 based on EPA Safe Drinking Water Act compliance data. Individual county scores vary — check your specific county's page for detailed information.
What contaminants are found in Kansas water supplies?
Drinking water quality varies by county and water system. The EPA Safe Drinking Water Information System (SDWIS) tracks violations for contaminants like lead, nitrates, bacteria, and disinfection byproducts. See individual county pages for specific contaminant and violation history.

Data Source

Water quality data sourced from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.

Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.

← Back to All States

Explore more data for Kansas

Property TaxCost of LivingCrime RateIncomeHealthSchoolsDisaster RiskWeatherCounty Score