Is Fannin County, GA a radon risk area?
Fannin County is mapped as Zone 2 - Moderate Potential by EPA — meaning the county-wide average indoor level is predicted between 2 and 4 pCi/L. Rank it against the rest of the country and Fannin County lands in the 49th percentile for radon potential.
How Fannin County compares
About 25,854 people live in Fannin County, Georgia, spread over 387.106 square miles. That works out to roughly 67 people per square mile. Rank 543 by population within its EPA zone puts Fannin County at the 47th percentile among zone peers. Geologically, Fannin County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.
Why the zone isn't the answer by itself
Fannin County's Zone 2 prediction clears the 1.3 pCi/L national indoor average without reaching EPA's own 4 pCi/L point for recommending a fix. A Zone 2 rating is a moderate county-wide average, not a guarantee about any one house in Fannin County — testing is the only way to know an individual home's actual level.
If Fannin County tests above the action level
Nothing about Fannin 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
Fannin County's test kit answers today; a Airthings radon monitor keeps answering for Fannin County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. RADONZONE-10OFF at checkout knocks 10% off.
More on how this number was built
Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.