Is radon more prevalent in Minnesota than other states?

Radon is a serious public health concern in Minnesota. According to the MN Department of Health, the average radon level in Minnesota is more than three times higher than the U.S. radon level. This is due to our geology and how our homes are operated. Minnesota homes are closed up or heated most of the year, which can result in higher levels of radon. In Minnesota, more than two in five homes have radon levels that pose a significant health risk.

There’s no way to predict exactly where radon might show up, but you can check the EPA’s color-coded map to see predicted averages for every county in the continental United States.