Is Goochland County, VA a radon risk area?

EPA places Goochland 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. Rank it against the rest of the country and Goochland County lands in the 85th percentile for radon potential.

Goochland County by the numbers

About 28,223 people live in Goochland County, Virginia, spread over 282.042 square miles. Population density there runs about 100 people per square mile. Rank 483 by population within its EPA zone puts Goochland County at the 55th percentile among zone peers. EPA's geology-based Region 3 groups Goochland County with 244 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Goochland County

Goochland County's predicted average sits above EPA's own action level of 4 pCi/L — the concentration at which EPA recommends fixing a home — versus a national average around 1.3 pCi/L indoors and 0.4 pCi/L outdoors. Some Goochland County homes will test comfortably under the action level despite the county's Zone 1 rating — the only way to know which kind of home you have is an actual test.

If Goochland County tests above the action level

Nothing about Goochland 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 Virginia's state radon program

Goochland County's test kit answers today; a Airthings radon monitor keeps answering for Goochland 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. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.