Owen County, KY: EPA's radon zone, explained

EPA's own radon map rates Owen County zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. Owen County sits at the 41st percentile nationally for radon potential — above 41 of every 100 rated counties.

How Owen County compares

Owen County, Kentucky is home to about 11,435 people across 350.487 square miles. Averaged across its land area, Owen County runs about 33 people per square mile. By population, Owen County is the 794th largest of every county sharing its EPA zone — the 23rd percentile by population within that zone. Geologically, Owen County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.

What this actually means for a house in Owen County

Call it a middle case: above the 1.3 pCi/L most US homes average, below the 4 pCi/L line EPA uses to recommend mitigation — that's Owen County's Zone 2 prediction. A county-wide moderate average, like Owen County's, can still hide a specific house well above or below it — testing is what actually answers the question.

If Owen County tests above the action level

For a Owen 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 Kentucky's state radon program

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

Where Owen County's figures come from

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