Is Barbour County, AL a radon risk area?

EPA places Barbour 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 Barbour County in the 48th percentile nationally for radon potential — higher than 48% of the counties EPA has rated.

Barbour County by the numbers

About 24,358 people live in Barbour County, Alabama, spread over 885.008 square miles. That works out to roughly 28 people per square mile. Rank 560 by population within its EPA zone puts Barbour County at the 46th percentile among zone peers. Barbour County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

What this actually means for a house in Barbour County

EPA's Zone 2 rating for Barbour County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. A county-wide moderate average, like Barbour County's, can still hide a specific house well above or below it — testing is what actually answers the question.

Testing and mitigation in Barbour County

Nothing about Barbour 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 Alabama's state radon program

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