Is Lowndes County, GA a radon risk area?

EPA's own radon map rates Lowndes County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. That puts Lowndes County in the 27th percentile nationally for radon potential — higher than 27% of the counties EPA has rated.

Where Lowndes County sits nationally

About 122,082 people live in Lowndes County, Georgia, spread over 497.25 square miles. That works out to roughly 246 people per square mile. Rank 193 by population within its EPA zone puts Lowndes County at the 81st percentile among zone peers. Lowndes County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

At Zone 3, Lowndes 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 Lowndes 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 Lowndes County tests above the action level

Nothing about Lowndes 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

Lowndes County's test kit answers today; a Airthings radon monitor keeps answering for Lowndes 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 Lowndes County's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.