Cleburne County, AR: EPA's radon zone, explained

EPA's own radon map rates Cleburne County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally, Cleburne County ranks higher in radon potential than 16% of rated counties (the 16th percentile).

How Cleburne County compares

Cleburne County, Arkansas is home to about 25,646 people across 553.959 square miles. Population density there runs about 46 people per square mile. By population, Cleburne County is the 533rd largest of every county sharing its EPA zone — the 48th percentile by population within that zone. Cleburne County falls in EPA Radon Region 6, one of 503 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Cleburne County's Zone 3 prediction is the low end of the scale. A Zone 3 rating means Cleburne 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.

Next steps for a home in Cleburne County

For a Cleburne County homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Arkansas's state radon program

For Cleburne County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Cleburne County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

Where Cleburne County's figures come from

Cleburne County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.