Is Walker County, GA a radon risk area?

EPA's own radon map rates Walker County zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. Nationally that's the 57th percentile for radon potential — Walker County outranks 57% of every county EPA has rated.

How Walker County compares

About 69,340 people live in Walker County, Georgia, spread over 446.286 square miles. That works out to roughly 155 people per square mile. Rank 265 by population within its EPA zone puts Walker County at the 74th percentile among zone peers. EPA's geology-based Region 4 groups Walker County with 735 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

Walker County's predicted average falls between EPA's 4 pCi/L action level and the national indoor average of about 1.3 pCi/L (outdoor air runs roughly 0.4 pCi/L). Nothing about a Zone 2 label lowers the case for testing in Walker County — EPA recommends it in every zone, moderate included.

If Walker County tests above the action level

Nothing about Walker County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Georgia's state radon program

Walker County's test kit answers today; a Airthings radon monitor keeps answering for Walker County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. Use code RADONZONE-10OFF at checkout for 10% off.

More on how this number was built

Walker County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.