Crawford County, AR radon potential
EPA's own radon map rates Crawford County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally, Crawford County ranks higher in radon potential than 24% of rated counties (the 24th percentile).
How Crawford County compares
Crawford County, Arkansas is home to about 62,258 people across 595.269 square miles. That works out to roughly 105 people per square mile. Within its own EPA zone, Crawford County is bigger by population than 71% of the counties that share it. EPA's geology-based Region 6 groups Crawford County with 502 other counties nationally sharing its underlying rock and soil profile.
What this actually means for a house in Crawford County
Crawford 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 Crawford County's average, not any one basement or slab in it — testing is still the only way an individual homeowner actually finds out.
Next steps for a home in Crawford 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 Crawford County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Crawford County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. RADONZONE-10OFF at checkout knocks 10% off.
Where Crawford County's figures come from
The methodology guide shows exactly which EPA and Census sources feed Crawford County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.