Is Toombs County, GA a radon risk area?

Toombs County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Nationally, Toombs County ranks higher in radon potential than 17% of rated counties (the 17th percentile).

How Toombs County compares

About 27,488 people live in Toombs County, Georgia, spread over 364.015 square miles. That works out to roughly 76 people per square mile. Rank 512 by population within its EPA zone puts Toombs County at the 50th percentile among zone peers. Geologically, Toombs County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.

What this actually means for a house in Toombs County

At Zone 3, Toombs County's predicted county average is under the national indoor average (~1.3 pCi/L) and well below EPA's 4 pCi/L action level — outdoor air nationally runs about 0.4 pCi/L for comparison. A Zone 3 rating means Toombs 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.

If Toombs County tests above the action level

Nothing about Toombs 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

Toombs County's test kit answers today; a Airthings radon monitor keeps answering for Toombs 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. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.