Perry County, AR radon potential

EPA's own radon map rates Perry County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally that's the 7th percentile for radon potential — Perry County outranks 7% of every county EPA has rated.

Where Perry County sits nationally

Perry County, Arkansas is home to about 10,251 people across 551.336 square miles. Averaged across its land area, Perry County runs about 19 people per square mile. Within its own EPA zone, Perry County is bigger by population than 21% of the counties that share it. Geologically, Perry County is grouped into EPA Region 6 alongside 502 other counties that share its rock and soil setting.

Why the zone isn't the answer by itself

Perry County's predicted average sits below the national indoor average of about 1.3 pCi/L, well under EPA's 4 pCi/L action level. A Zone 3 label describes Perry County's average, not any one basement or slab in it — testing is still the only way an individual homeowner actually finds out.

Testing and mitigation in Perry County

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Arkansas's state radon program

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

Where Perry County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Perry County's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.