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

Appling County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Appling County sits at the 12th percentile nationally for radon potential — above 12 of every 100 rated counties.

Where Appling County sits nationally

Appling County, Georgia is home to about 18,669 people across 508.263 square miles. That works out to roughly 37 people per square mile. By population, Appling County is the 647th largest of every county sharing its EPA zone — the 37th percentile by population within that zone. Appling 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

A Zone 3 county like Appling County is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. A Zone 3 label describes Appling County's average, not any one basement or slab in it — testing is still the only way an individual homeowner actually finds out.

If Appling County tests above the action level

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

Where Appling County's figures come from

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.