Is Chattooga County, GA a radon risk area?
EPA places Chattooga County in Zone 3 - Low Potential — a predicted county-wide average indoor radon level below 2 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally that's the 16th percentile for radon potential — Chattooga County outranks 16% of every county EPA has rated.
Where Chattooga County sits nationally
About 25,306 people live in Chattooga County, Georgia, spread over 313.327 square miles. That works out to roughly 81 people per square mile. Rank 542 by population within its EPA zone puts Chattooga County at the 47th percentile among zone peers. Geologically, Chattooga County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.
Zone vs. an actual test
Chattooga County's Zone 3 prediction undercuts the roughly 1.3 pCi/L most US homes average, nowhere near EPA's 4 pCi/L threshold for recommending mitigation. A Zone 3 rating means Chattooga County's county-wide average is predicted low, but EPA is explicit that a meaningful share of homes in low-potential zones still test above the action level — a low zone is not a reason to skip testing.
Next steps for a home in Chattooga County
Nothing about Chattooga 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
Chattooga County's test kit answers today; a Airthings radon monitor keeps answering for Chattooga County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.
More on how this number was built
Chattooga 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.