What EPA's radon map says about Lee County

EPA's own radon map rates Lee County zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. Lee County sits at the 37th percentile nationally for radon potential — above 37 of every 100 rated counties.

Lee County by the numbers

About 7,313 people live in Lee County, Kentucky, spread over 208.821 square miles. Population density there runs about 35 people per square mile. Among counties sharing Lee County's EPA zone, it outranks 13% of them by population. Geologically, Lee 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 Lee County

Lee County's predicted average falls between EPA's 4 pCi/L action level and the national indoor average of about 1.3 pCi/L (outdoor air runs roughly 0.4 pCi/L). A county-wide moderate average, like Lee County's, can still hide a specific house well above or below it — testing is what actually answers the question.

If Lee County tests above the action level

Mitigation cost doesn't depend on Lee County's zone — it depends on the house's foundation. A typical system runs $800–$2,500 (about $1,200 typical), and testing first is what tells you whether that's needed at all.

Find Kentucky's state radon program

Lee County's test kit answers today; a Airthings radon monitor keeps answering for Lee County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. RADONZONE-10OFF at checkout knocks 10% off.

More on how this number was built

Lee County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.