Is Stephens County, GA a radon risk area?

Stephens 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. That puts Stephens County in the 49th percentile nationally for radon potential — higher than 49% of the counties EPA has rated.

Where Stephens County sits nationally

About 27,498 people live in Stephens County, Georgia, spread over 178.862 square miles. That works out to roughly 154 people per square mile. Rank 516 by population within its EPA zone puts Stephens County at the 50th percentile among zone peers. Geologically, Stephens 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

Neither at the 4 pCi/L action level nor down at the roughly 1.3 pCi/L national indoor norm, Stephens County's Zone 2 prediction lands in the gap between the two. Stephens County's Zone 2 rating sits in the middle nationally; EPA's guidance is unchanged by that — test every home regardless of its zone.

Next steps for a home in Stephens County

Nothing about Stephens 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

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

The methodology guide shows exactly which EPA and Census sources feed Stephens County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.