McCracken County, KY radon potential

EPA places McCracken County in Zone 3 - Low Potential — a predicted county-wide average indoor radon level below 2 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally that's the 24th percentile for radon potential — McCracken County outranks 24% of every county EPA has rated.

How McCracken County compares

McCracken County, Kentucky is home to about 67,550 people across 248.796 square miles. Averaged across its land area, McCracken County runs about 272 people per square mile. Within its own EPA zone, McCracken County is bigger by population than 73% of the counties that share it. EPA's geology-based Region 4 groups McCracken County with 735 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

McCracken 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 rating means McCracken County's county-wide average is predicted low, but EPA is explicit that a meaningful share of homes in low-potential zones still test above the action level — a low zone is not a reason to skip testing.

Testing and mitigation in McCracken 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 Kentucky's state radon program

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

Where McCracken County's figures come from

The methodology guide shows exactly which EPA and Census sources feed McCracken County's numbers. Whatever zone McCracken County carries, the zone explainer covers what it does and doesn't tell you about any one house.