Radon Compass

Radon in Kansas

We don't have lab test results for Kansas yet. EPA zones for every county are below.

The EPA puts 65 of Kansas's 105 counties in Zone 1, its highest radon category, 40 in Zone 2 and 0 in Zone 3.

Every county in Kansas

Sorted by the share of homes tested at or above 4 pCi/L. Select a county for local details and costs.

CountyHomes testedAt or above 4MedianEPA zone
Allen CountyNo data––2
Anderson CountyNo data––2
Atchison CountyNo data––1
Barber CountyNo data––2
Barton CountyNo data––1
Bourbon CountyNo data––2
Brown CountyNo data––1
Butler CountyNo data––2
Chase CountyNo data––2
Chautauqua CountyNo data––2
Cherokee CountyNo data––2
Cheyenne CountyNo data––1
Clark CountyNo data––2
Clay CountyNo data––1
Cloud CountyNo data––1
Coffey CountyNo data––2
Comanche CountyNo data––2
Cowley CountyNo data––2
Crawford CountyNo data––2
Decatur CountyNo data––1
Dickinson CountyNo data––1
Doniphan CountyNo data––2
Douglas CountyNo data––1
Edwards CountyNo data––2
Elk CountyNo data––2
Ellis CountyNo data––1
Ellsworth CountyNo data––1
Finney CountyNo data––1
Ford CountyNo data––1
Franklin CountyNo data––2
Geary CountyNo data––1
Gove CountyNo data––1
Graham CountyNo data––1
Grant CountyNo data––1
Gray CountyNo data––1
Greeley CountyNo data––1
Greenwood CountyNo data––2
Hamilton CountyNo data––1
Harper CountyNo data––2
Harvey CountyNo data––2
Haskell CountyNo data––1
Hodgeman CountyNo data––1
Jackson CountyNo data––1
Jefferson CountyNo data––2
Jewell CountyNo data––1
Johnson CountyNo data––1
Kearny CountyNo data––1
Kingman CountyNo data––1
Kiowa CountyNo data––1
Labette CountyNo data––2
Lane CountyNo data––1
Leavenworth CountyNo data––1
Lincoln CountyNo data––1
Linn CountyNo data––2
Logan CountyNo data––1
Lyon CountyNo data––2
Marion CountyNo data––1
Marshall CountyNo data––1
McPherson CountyNo data––1
Meade CountyNo data––1
Miami CountyNo data––2
Mitchell CountyNo data––1
Montgomery CountyNo data––2
Morris CountyNo data––2
Morton CountyNo data––2
Nemaha CountyNo data––1
Neosho CountyNo data––2
Ness CountyNo data––1
Norton CountyNo data––1
Osage CountyNo data––2
Osborne CountyNo data––1
Ottawa CountyNo data––1
Pawnee CountyNo data––1
Phillips CountyNo data––1
Pottawatomie CountyNo data––1
Pratt CountyNo data––1
Rawlins CountyNo data––1
Reno CountyNo data––2
Republic CountyNo data––1
Rice CountyNo data––1
Riley CountyNo data––1
Rooks CountyNo data––1
Rush CountyNo data––1
Russell CountyNo data––1
Saline CountyNo data––1
Scott CountyNo data––1
Sedgwick CountyNo data––2
Seward CountyNo data––2
Shawnee CountyNo data––2
Sheridan CountyNo data––1
Sherman CountyNo data––1
Smith CountyNo data––1
Stafford CountyNo data––2
Stanton CountyNo data––1
Stevens CountyNo data––2
Sumner CountyNo data––2
Thomas CountyNo data––1
Trego CountyNo data––1
Wabaunsee CountyNo data––2
Wallace CountyNo data––1
Washington CountyNo data––1
Wichita CountyNo data––1
Wilson CountyNo data––2
Woodson CountyNo data––2
Wyandotte CountyNo data––1

"–" means fewer than 20 tests or no lab data, too few for a reliable figure.

Sources

Last updated October 2026. How we calculate these numbers.