Is Heard County, GA a radon risk area?

EPA places Heard 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. Nationally that's the 41st percentile for radon potential — Heard County outranks 41% of every county EPA has rated.

Heard County by the numbers

About 12,119 people live in Heard County, Georgia, spread over 295.973 square miles. That works out to roughly 41 people per square mile. Rank 780 by population within its EPA zone puts Heard County at the 24th percentile among zone peers. EPA's geology-based Region 4 groups Heard County with 735 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

Heard 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 county-wide moderate average, like Heard County's, can still hide a specific house well above or below it — testing is what actually answers the question.

Testing and mitigation in Heard County

Nothing about Heard 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

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

The methodology guide shows exactly which EPA and Census sources feed Heard County's numbers. Whatever zone Heard County carries, the zone explainer covers what it does and doesn't tell you about any one house.