Kansas Radon Zone Map
Counties colored by EPA radon zone. Red = Zone 1, Orange = Zone 2, Green = Zone 3.
All 105 Counties — By Radon Risk
| County | EPA Zone | Tests | % Above 4 pCi/L |
|---|
| Atchison |
High |
— |
— |
| Barton |
High |
— |
— |
| Brown |
High |
— |
— |
| Cheyenne |
High |
— |
— |
| Clay |
High |
— |
— |
| Cloud |
High |
— |
— |
| Decatur |
High |
— |
— |
| Dickinson |
High |
— |
— |
| Douglas |
High |
— |
— |
| Ellis |
High |
— |
— |
| Ellsworth |
High |
— |
— |
| Finney |
High |
— |
— |
| Ford |
High |
— |
— |
| Geary |
High |
— |
— |
| Gove |
High |
— |
— |
| Graham |
High |
— |
— |
| Grant |
High |
— |
— |
| Gray |
High |
— |
— |
| Greeley |
High |
— |
— |
| Hamilton |
High |
— |
— |
| Haskell |
High |
— |
— |
| Hodgeman |
High |
— |
— |
| Jackson |
High |
— |
— |
| Jewell |
High |
— |
— |
| Johnson |
High |
— |
— |
| Kearny |
High |
— |
— |
| Kingman |
High |
— |
— |
| Kiowa |
High |
— |
— |
| Lane |
High |
— |
— |
| Leavenworth |
High |
— |
— |
| Lincoln |
High |
— |
— |
| Logan |
High |
— |
— |
| Marion |
High |
— |
— |
| Marshall |
High |
— |
— |
| McPherson |
High |
— |
— |
| Meade |
High |
— |
— |
| Mitchell |
High |
— |
— |
| Nemaha |
High |
— |
— |
| Ness |
High |
— |
— |
| Norton |
High |
— |
— |
| Osborne |
High |
— |
— |
| Ottawa |
High |
— |
— |
| Pawnee |
High |
— |
— |
| Phillips |
High |
— |
— |
| Pottawatomie |
High |
— |
— |
| Pratt |
High |
— |
— |
| Rawlins |
High |
— |
— |
| Republic |
High |
— |
— |
| Rice |
High |
— |
— |
| Riley |
High |
— |
— |
| Rooks |
High |
— |
— |
| Rush |
High |
— |
— |
| Russell |
High |
— |
— |
| Saline |
High |
— |
— |
| Scott |
High |
— |
— |
| Sheridan |
High |
— |
— |
| Sherman |
High |
— |
— |
| Smith |
High |
— |
— |
| Stanton |
High |
— |
— |
| Thomas |
High |
— |
— |
| Trego |
High |
— |
— |
| Wallace |
High |
— |
— |
| Washington |
High |
— |
— |
| Wichita |
High |
— |
— |
| Wyandotte |
High |
— |
— |
| Allen |
Moderate |
— |
— |
| Anderson |
Moderate |
— |
— |
| Barber |
Moderate |
— |
— |
| Bourbon |
Moderate |
— |
— |
| Butler |
Moderate |
— |
— |
| Chase |
Moderate |
— |
— |
| Chautauqua |
Moderate |
— |
— |
| Cherokee |
Moderate |
— |
— |
| Clark |
Moderate |
— |
— |
| Coffey |
Moderate |
— |
— |
| Comanche |
Moderate |
— |
— |
| Cowley |
Moderate |
— |
— |
| Crawford |
Moderate |
— |
— |
| Doniphan |
Moderate |
— |
— |
| Edwards |
Moderate |
— |
— |
| Elk |
Moderate |
— |
— |
| Franklin |
Moderate |
— |
— |
| Greenwood |
Moderate |
— |
— |
| Harper |
Moderate |
— |
— |
| Harvey |
Moderate |
— |
— |
| Jefferson |
Moderate |
— |
— |
| Labette |
Moderate |
— |
— |
| Linn |
Moderate |
— |
— |
| Lyon |
Moderate |
— |
— |
| Miami |
Moderate |
— |
— |
| Montgomery |
Moderate |
— |
— |
| Morris |
Moderate |
— |
— |
| Morton |
Moderate |
— |
— |
| Neosho |
Moderate |
— |
— |
| Osage |
Moderate |
— |
— |
| Reno |
Moderate |
— |
— |
| Sedgwick |
Moderate |
— |
— |
| Seward |
Moderate |
— |
— |
| Shawnee |
Moderate |
— |
— |
| Stafford |
Moderate |
— |
— |
| Stevens |
Moderate |
— |
— |
| Sumner |
Moderate |
— |
— |
| Wabaunsee |
Moderate |
— |
— |
| Wilson |
Moderate |
— |
— |
| Woodson |
Moderate |
— |
— |
Sources: EPA Map of Radon Zones, CDC Environmental Health Tracking Network
Frequently Asked Questions
How many counties in Kansas have high radon risk?
Kansas has 65 counties classified as EPA Zone 1 (high radon risk), 40 as Zone 2 (moderate), and 0 as Zone 3 (low risk).
Is radon a problem in Kansas?
Kansas has 65 high-risk counties where elevated radon is likely. The EPA recommends all homes in Kansas be tested for radon, regardless of which zone they're in.
How do I check radon levels for my Kansas address?
Enter your ZIP code in the search box above to see your county's EPA radon zone and available testing data. For your specific home's radon level, you'll need a radon test kit.