While it would be easy to say yes, the reality is that every home should be tested every 2 years. Uranium and Radium take a very long time to breakdown and just because your home tested good once does not mean it continues to be safe.
I heard that Radon is really only a concern in heavily populated areas like Chicago or L.A. – is that true?
I would love to be able to tell you that those of us living in Iowa are exempt from this danger, but I cannot. In fact, the EPA has listed Iowa as a Zone 1 area, meaning that they estimate that at least 50% of the homes in Iowa have a high level of Radon Gas. There is only one other state in the U.S. that the entire state is listed as a Zone 1.
Population does not have an impact, so whether you live in town or out in the country please have your home or business tested.