Get in touch

RadonZoneCheck is run by a small team. If you spot a county where the EPA zone rating, the national rank, or a link looks wrong, that is useful to hear about — the whole point of the site is that the number is trustworthy.

Email hello@radonzonecheck.com. This is not a live-chat or same-day support line; expect a reply within a few days.

What we cannot do

We cannot test a specific property for radon, sell or install a mitigation system, or give health advice — see the terms of use. For an actual reading, use a test kit or a certified radon measurement professional; EPA's state radon program directory, linked from every county page, is the place to start.