Kansas has 105 counties, with 65 classified as EPA Zone 1 (highest risk). With an average radon level of 8.41 pCi/L, Kansas state testing data reveals significantly elevated risks across multiple counties. Testing is highly recommended.
Kansas is the 15th most expansive state and the 34th most populous. It also happens to be one of the most productive states in the country as far as agriculture is concerned with several high yields of wheat, sorghum and more. It is estimated by the Kansas Department of Public Health that more than 200 lung cancer deaths in the state every year can be linked to indoor radon exposure.
The state has an active radon program, dedicated to educating citizens about the risks associated with the deadly gas. You can find more information on Radon, testing and mitigation at the official page.
Explore radon data organized by metro region, including average levels, hotspot cities, and local mitigation professionals.
Cities with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Topeka | 6.00 pCi/L | 1 |
| Overland Park | No submissions | 0 |
All 105 Kansas counties with their EPA radon zone classification and user-submitted average radon levels.
Browse radon data for individual cities across Kansas. Each city page includes user-submitted radon levels, local contractors, and mitigation resources.