Private Well Water Testing in Kansas
County-by-county USGS area-risk estimates for private wells across Kansas — arsenic exceedance probability and private-well population — plus how to test your own well at a Kansas-certified laboratory.
Kansas private-well risk summary
Counties covered
105
Kansas counties with modeled risk data.
People on private wells
area estimate234,836
estimated across covered Kansas counties.
Average arsenic risk
area estimate4%
average modeled chance a well exceeds 10 µg/L arsenic across covered counties.
Kansas counties
- Sedgwick County5% arsenic exceedance (area estimate)40,652 people on private wells
- Reno County5% arsenic exceedance (area estimate)16,199 people on private wells
- Butler County6% arsenic exceedance (area estimate)13,912 people on private wells
- Leavenworth County3% arsenic exceedance (area estimate)7,644 people on private wells
- Finney County6% arsenic exceedance (area estimate)5,418 people on private wells
- Sumner County2% arsenic exceedance (area estimate)5,246 people on private wells
- Harvey County7% arsenic exceedance (area estimate)5,105 people on private wells
- Barton County4% arsenic exceedance (area estimate)4,988 people on private wells
- McPherson County3% arsenic exceedance (area estimate)4,955 people on private wells
- Ellis County3% arsenic exceedance (area estimate)4,447 people on private wells
- Douglas County2% arsenic exceedance (area estimate)4,437 people on private wells
- Riley County2% arsenic exceedance (area estimate)4,402 people on private wells
- Dickinson County2% arsenic exceedance (area estimate)4,298 people on private wells
- Ford County2% arsenic exceedance (area estimate)4,253 people on private wells
- Shawnee County2% arsenic exceedance (area estimate)4,148 people on private wells
- Pottawatomie County2% arsenic exceedance (area estimate)3,995 people on private wells
- Cowley County6% arsenic exceedance (area estimate)3,881 people on private wells
- Marion County4% arsenic exceedance (area estimate)3,349 people on private wells
- Geary County3% arsenic exceedance (area estimate)3,176 people on private wells
- Saline County3% arsenic exceedance (area estimate)3,030 people on private wells
- Franklin County2% arsenic exceedance (area estimate)2,939 people on private wells
- Kingman County3% arsenic exceedance (area estimate)2,848 people on private wells
- Jefferson County2% arsenic exceedance (area estimate)2,507 people on private wells
- Jackson County2% arsenic exceedance (area estimate)2,425 people on private wells
- Cherokee County4% arsenic exceedance (area estimate)2,299 people on private wells
- Morris County6% arsenic exceedance (area estimate)2,248 people on private wells
- Wabaunsee County4% arsenic exceedance (area estimate)2,222 people on private wells
- Brown County2% arsenic exceedance (area estimate)2,189 people on private wells
- Pratt County3% arsenic exceedance (area estimate)2,102 people on private wells
- Lyon County4% arsenic exceedance (area estimate)2,044 people on private wells
- Rice County4% arsenic exceedance (area estimate)1,984 people on private wells
- Gray County4% arsenic exceedance (area estimate)1,960 people on private wells
- Montgomery County3% arsenic exceedance (area estimate)1,942 people on private wells
- Seward County4% arsenic exceedance (area estimate)1,804 people on private wells
- Thomas County6% arsenic exceedance (area estimate)1,779 people on private wells
- Ottawa County3% arsenic exceedance (area estimate)1,776 people on private wells
- Miami County1% arsenic exceedance (area estimate)1,737 people on private wells
- Stafford County4% arsenic exceedance (area estimate)1,564 people on private wells
- Doniphan County3% arsenic exceedance (area estimate)1,526 people on private wells
- Clay County3% arsenic exceedance (area estimate)1,518 people on private wells
- Marshall County2% arsenic exceedance (area estimate)1,492 people on private wells
- Atchison County2% arsenic exceedance (area estimate)1,489 people on private wells
- Norton County4% arsenic exceedance (area estimate)1,467 people on private wells
- Cloud County3% arsenic exceedance (area estimate)1,400 people on private wells
- Nemaha County2% arsenic exceedance (area estimate)1,351 people on private wells
- Phillips County3% arsenic exceedance (area estimate)1,299 people on private wells
- Washington County2% arsenic exceedance (area estimate)1,286 people on private wells
- Haskell County5% arsenic exceedance (area estimate)1,236 people on private wells
- Grant County11% arsenic exceedance (area estimate)1,232 people on private wells
- Johnson County2% arsenic exceedance (area estimate)1,220 people on private wells
- Ellsworth County3% arsenic exceedance (area estimate)1,057 people on private wells
- Osage County2% arsenic exceedance (area estimate)1,042 people on private wells
- Sherman County5% arsenic exceedance (area estimate)1,015 people on private wells
- Scott County4% arsenic exceedance (area estimate)992 people on private wells
- Meade County3% arsenic exceedance (area estimate)969 people on private wells
- Coffey County2% arsenic exceedance (area estimate)959 people on private wells
- Republic County3% arsenic exceedance (area estimate)938 people on private wells
- Stevens County7% arsenic exceedance (area estimate)891 people on private wells
- Gove County5% arsenic exceedance (area estimate)855 people on private wells
- Rooks County3% arsenic exceedance (area estimate)844 people on private wells
- Kearny County9% arsenic exceedance (area estimate)836 people on private wells
- Cheyenne County4% arsenic exceedance (area estimate)812 people on private wells
- Linn County1% arsenic exceedance (area estimate)742 people on private wells
- Harper County3% arsenic exceedance (area estimate)740 people on private wells
- Barber County3% arsenic exceedance (area estimate)728 people on private wells
- Pawnee County3% arsenic exceedance (area estimate)713 people on private wells
- Hamilton County9% arsenic exceedance (area estimate)702 people on private wells
- Chautauqua County2% arsenic exceedance (area estimate)700 people on private wells
- Greenwood County4% arsenic exceedance (area estimate)692 people on private wells
- Osborne County2% arsenic exceedance (area estimate)660 people on private wells
- Anderson County1% arsenic exceedance (area estimate)617 people on private wells
- Neosho County1% arsenic exceedance (area estimate)616 people on private wells
- Smith County2% arsenic exceedance (area estimate)606 people on private wells
- Graham County5% arsenic exceedance (area estimate)601 people on private wells
- Trego County4% arsenic exceedance (area estimate)585 people on private wells
- Chase County7% arsenic exceedance (area estimate)561 people on private wells
- Decatur County6% arsenic exceedance (area estimate)559 people on private wells
- Edwards County3% arsenic exceedance (area estimate)555 people on private wells
- Sheridan County6% arsenic exceedance (area estimate)517 people on private wells
- Labette County1% arsenic exceedance (area estimate)506 people on private wells
- Morton County7% arsenic exceedance (area estimate)500 people on private wells
- Logan County5% arsenic exceedance (area estimate)487 people on private wells
- Woodson County2% arsenic exceedance (area estimate)486 people on private wells
- Stanton County11% arsenic exceedance (area estimate)469 people on private wells
- Wyandotte County3% arsenic exceedance (area estimate)460 people on private wells
- Bourbon County2% arsenic exceedance (area estimate)459 people on private wells
- Lincoln County3% arsenic exceedance (area estimate)452 people on private wells
- Wichita County5% arsenic exceedance (area estimate)446 people on private wells
- Allen County2% arsenic exceedance (area estimate)435 people on private wells
- Russell County3% arsenic exceedance (area estimate)435 people on private wells
- Wallace County6% arsenic exceedance (area estimate)432 people on private wells
- Lane County7% arsenic exceedance (area estimate)430 people on private wells
- Kiowa County3% arsenic exceedance (area estimate)419 people on private wells
- Ness County4% arsenic exceedance (area estimate)388 people on private wells
- Rawlins County4% arsenic exceedance (area estimate)382 people on private wells
- Greeley County7% arsenic exceedance (area estimate)377 people on private wells
- Rush County3% arsenic exceedance (area estimate)375 people on private wells
- Wilson County2% arsenic exceedance (area estimate)359 people on private wells
- Hodgeman County3% arsenic exceedance (area estimate)345 people on private wells
- Crawford County2% arsenic exceedance (area estimate)333 people on private wells
- Elk County3% arsenic exceedance (area estimate)297 people on private wells
- Mitchell County2% arsenic exceedance (area estimate)291 people on private wells
- Clark County3% arsenic exceedance (area estimate)288 people on private wells
- Comanche County3% arsenic exceedance (area estimate)235 people on private wells
- Jewell County3% arsenic exceedance (area estimate)226 people on private wells
Find a Kansas-certified testing lab
Get your well tested at a Kansas-certified laboratory. We list certification programs by state.
These figures are USGS area estimates: statistical groundwater models describing how likely elevated contaminant levels are across a county. They are not designed to predict the concentration in any single well. Only testing your own well reveals its water quality.
By TapWaterData Editorial
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