Connecticut radon directory
Radon Professionals in Connecticut
Counties on the map are shaded by EPA radon zone and every dot is a town with its own page. Select a county to see everything inside it, or a dot to go straight to the town.
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Radon In Connecticut
Radon levels vary by geology, not by city limits, so two houses on the same street can read differently. The only way to know a home’s level is to test it. The map shows EPA radon zones across Connecticut, which predict what is likely rather than what any individual house will measure.
Of the 8 counties in Connecticut on this map, 4 are in EPA Zone 1, the highest of the three predicted levels.
- Zone 1, highest
- 4
- Zone 2, moderate
- 3
- Zone 3, lowest
- 1
Zones predict what is likely across a county. They say nothing about one house, and homes in every zone test high.
Connecticut runs its own radon program, and it is worth a call before you spend anything: several states hand out discounted or free test kits, and the office can tell you what the rules are where you live.
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