Muhlenberg County, KY radon potential

EPA places Muhlenberg County in Zone 2 - Moderate Potential — a predicted county-wide average indoor radon level between 2 and 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. That puts Muhlenberg County in the 51st percentile nationally for radon potential — higher than 51% of the counties EPA has rated.

How Muhlenberg County compares

Muhlenberg County, Kentucky is home to about 30,512 people across 467.281 square miles. Averaged across its land area, Muhlenberg County runs about 65 people per square mile. Within its own EPA zone, Muhlenberg County is bigger by population than 53% of the counties that share it. Muhlenberg County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

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 Muhlenberg County's Zone 2 prediction. Muhlenberg County's Zone 2 rating sits in the middle nationally; EPA's guidance is unchanged by that — test every home regardless of its zone.

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

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. Whatever zone Muhlenberg County carries, the zone explainer covers what it does and doesn't tell you about any one house.