Garrard County, KY radon potential

Garrard 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. Nationally, Garrard County ranks higher in radon potential than 45% of rated counties (the 45th percentile).

Garrard County by the numbers

Garrard County, Kentucky is home to about 18,040 people across 229.925 square miles. Averaged across its land area, Garrard County runs about 78 people per square mile. Within its own EPA zone, Garrard County is bigger by population than 36% of the counties that share it. Geologically, Garrard 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 Garrard County

EPA's Zone 2 rating for Garrard County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. A county-wide moderate average, like Garrard County's, can still hide a specific house well above or below it — testing is what actually answers the question.

If Garrard County tests above the action level

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 Kentucky's state radon program

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

Where Garrard County's figures come from

Garrard 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.