The map below indicates areas at risk for higher levels of radon. Click the map to see your county. Please note that this data is based on test results between March 2003 and July 2017. There were insufficient data to determine the radon levels for counties without color. This map only serves as an approximation of the likelihood that your home contains higher radon levels.
Testing is the only way to know if you have dangerous levels of radon.
Click here for the EPA radon map of the United States.