What EPA's radon map says about Rabun County

EPA places Rabun County in Zone 2 - Moderate Potential — a predicted county-wide average indoor radon level between 2 and 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. That puts Rabun County in the 45th percentile nationally for radon potential — higher than 45% of the counties EPA has rated.

How Rabun County compares

About 17,711 people live in Rabun County, Georgia, spread over 370.137 square miles. That works out to roughly 48 people per square mile. Among counties sharing Rabun County's EPA zone, it outranks 35% of them by population. EPA's geology-based Region 4 groups Rabun County with 735 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Rabun County

Rabun 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. Middle-of-the-pack doesn't mean risk-free for any one Rabun County address — a moderate county average still leaves individual homes to test either side of it.

Testing and mitigation in Rabun County

Mitigation cost doesn't depend on Rabun County's zone — it depends on the house's foundation. A typical system runs $800–$2,500 (about $1,200 typical), and testing first is what tells you whether that's needed at all.

Find Georgia's state radon program

Rabun County's test kit answers today; a Airthings radon monitor keeps answering for Rabun 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

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.