– All homes should test for radon, regardless of geographic location or zone designation. How do I test my home?
– There are many thousands of individual homes with elevated radon levels in Zone 2 and 3. Elevated levels can be found in Zone 2 and Zone 3 counties.
– EPA also recommends that this map be supplemented with any available local data in order to further understand and predict the radon potential of a specific area. For more information, contact your state radon coordinator. Click Here for a US map (where you can select your state) to see if your state has more detailed information available.
– The map should not be used in lieu of testing during real estate transactions.
About the Map
Sections 307 and 309 of the Indoor Radon Abatement Act of 1988 (IRAA) directed EPA to list and identify areas of the U.S. with the potential for elevated indoor radon levels. EPA’s Map of Radon Zones assigns each of the 3,141 counties in the U.S. to one of three zones based on radon potential.