What EPA's radon map says about Woodford County

EPA places Woodford County in Zone 1 - Highest Potential — a predicted county-wide average indoor radon level above 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. That puts Woodford County in the 84th percentile nationally for radon potential — higher than 84% of the counties EPA has rated.

Woodford County by the numbers

About 27,728 people live in Woodford County, Kentucky, spread over 189.573 square miles. Population density there runs about 146 people per square mile. Among counties sharing Woodford County's EPA zone, it outranks 54% of them by population. Woodford 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 Woodford County

Fixing a home becomes an EPA recommendation past 4 pCi/L, and that is precisely the side of the line Woodford County's Zone 1 prediction lands on, well above the roughly 1.3 pCi/L most US homes average. That doesn't mean every Woodford County house tests high — a zone is a county-wide prediction, never a single-home reading — but it's a reason to test sooner rather than let it wait.

Next steps for a home in Woodford County

Mitigation cost doesn't depend on Woodford 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 Kentucky's state radon program

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

More on how this number was built

Woodford County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.