What EPA's radon map says about Webster County

Webster County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. That puts Webster County in the 1st percentile nationally for radon potential — higher than 1% of the counties EPA has rated.

How Webster County compares

About 2,315 people live in Webster County, Georgia, spread over 209.657 square miles. That works out to roughly 11 people per square mile. Among counties sharing Webster County's EPA zone, it outranks 4% of them by population. Webster County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

What this actually means for a house in Webster County

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Webster County's Zone 3 prediction is the low end of the scale. Low doesn't mean zero: EPA's own data shows homes in Zone 3 counties like Webster County testing above the action level often enough that skipping a test isn't the safe assumption.

Next steps for a home in Webster County

Mitigation cost doesn't depend on Webster County's zone — it depends on the house's foundation. A typical system runs $800–$2,500 (about $1,200 typical), and testing first is what tells you whether that's needed at all.

Find Georgia's state radon program

Webster County's test kit answers today; a Airthings radon monitor keeps answering for Webster County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

More on how this number was built

The methodology guide shows exactly which EPA and Census sources feed Webster County's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.