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

Laurel County is mapped as Zone 2 - Moderate Potential by EPA — meaning the county-wide average indoor level is predicted between 2 and 4 pCi/L. Rank it against the rest of the country and Laurel County lands in the 57th percentile for radon potential.

Where Laurel County sits nationally

Laurel County, Kentucky is home to about 63,353 people across 433.704 square miles. Population density there runs about 146 people per square mile. By population, Laurel County is the 293rd largest of every county sharing its EPA zone — the 72nd percentile by population within that zone. Geologically, Laurel County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.

Zone vs. an actual test

Laurel County's Zone 2 prediction clears the 1.3 pCi/L national indoor average without reaching EPA's own 4 pCi/L point for recommending a fix. Middle-of-the-pack doesn't mean risk-free for any one Laurel County address — a moderate county average still leaves individual homes to test either side of it.

Testing and mitigation in Laurel County

For a Laurel 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 Laurel County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Laurel 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 Laurel County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Laurel County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.