Douglas County, GA: EPA's radon zone, explained

EPA's own radon map rates Douglas County zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. Rank it against the rest of the country and Douglas County lands in the 61st percentile for radon potential.

Douglas County by the numbers

Douglas County, Georgia is home to about 151,887 people across 200.136 square miles. That works out to roughly 759 people per square mile. By population, Douglas County is the 150th largest of every county sharing its EPA zone — the 86th percentile by population within that zone. Douglas County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

Neither at the 4 pCi/L action level nor down at the roughly 1.3 pCi/L national indoor norm, Douglas County's Zone 2 prediction lands in the gap between the two. A Zone 2 rating is a moderate county-wide average, not a guarantee about any one house in Douglas County — testing is the only way to know an individual home's actual level.

Testing and mitigation in Douglas County

For a Douglas County homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Georgia's state radon program

For Douglas County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Douglas County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. RADONZONE-10OFF at checkout knocks 10% off.

Where Douglas County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Douglas County's numbers. Whatever zone Douglas County carries, the zone explainer covers what it does and doesn't tell you about any one house.