Is Wood County, OH a radon risk area?

EPA's own radon map rates Wood County zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. Nationally, Wood County ranks higher in radon potential than 61% of rated counties (the 61st percentile).

Wood County by the numbers

About 133,077 people live in Wood County, Ohio, spread over 617.167 square miles. That works out to roughly 216 people per square mile. Rank 158 by population within its EPA zone puts Wood County at the 85th percentile among zone peers. Geologically, Wood County is grouped into EPA Region 5 alongside 523 other counties that share its rock and soil setting.

What this actually means for a house in Wood County

Wood 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. A Zone 2 rating is a moderate county-wide average, not a guarantee about any one house in Wood County — testing is the only way to know an individual home's actual level.

Testing and mitigation in Wood County

Nothing about Wood County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Ohio's state radon program

Wood County's test kit answers today; a Airthings radon monitor keeps answering for Wood 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

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