Winston County, AL radon potential

Winston 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 Winston County lands in the 48th percentile for radon potential.

Where Winston County sits nationally

Winston County, Alabama is home to about 23,869 people across 613 square miles. Averaged across its land area, Winston County runs about 39 people per square mile. Within its own EPA zone, Winston County is bigger by population than 45% of the counties that share it. EPA's geology-based Region 4 groups Winston County with 735 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

Winston 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 Winston County address — a moderate county average still leaves individual homes to test either side of it.

Next steps for a home in Winston 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 Alabama's state radon program

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

Where Winston County's figures come from

Winston County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. Whatever zone Winston County carries, the zone explainer covers what it does and doesn't tell you about any one house.