Radon Information for Wisconsin

January is Radon Action Month

Radon can cause lung cancer and is common in Wisconsin. You can't see it, you can't smell it, but you can protect yourself and your family from it. This January, take action by testing your home for radon.

Do you need a radon test kit?

Homeowners: Just contact your nearest Radon Information Center to obtain a test kit and to help answer your questions.

Schools: Our Radon in Schools page has more information for schools that want to learn more about radon testing. Schools can also contact their nearest Radon Information Center with questions.


About 1 out of 10 homes in Wisconsin has high radon levels

Radon is a naturally occurring gas that is radioactive and can cause lung cancer. Radon can leak into your home and is common in Wisconsin. While you can't see or smell it, you can protect yourself from it. Testing for radon is common when buying or selling a home, but you should take action now by testing your home.


Contact a Radon Information Center to get a test kit for around $20; certified measurement professionals are also available.


If your radon levels are high, a contractor can fix it. Check out the certified contractor listings.


Radon is the second leading cause of lung cancer in the United States.

Interactive Radon map for Wisconsin


View our interactive map of radon test results to see where radon levels are the highest.


Where does radon come from?

Radon is naturally occurring from the ground, and although you cannot see it or smell it, it can be present in your home.

New resources

Experts are available statewide to answer your questions and provide test kits to the general public.

Have questions or need help? Get in touch with a radon expert by calling
1-888-LOW-RADON (1-888-569-7236).

Last Revised: January 8, 2019