Is Prince George County, VA a radon risk area?

Prince George County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Prince George County sits at the 21st percentile nationally for radon potential — above 21 of every 100 rated counties.

Where Prince George County sits nationally

About 43,589 people live in Prince George County, Virginia, spread over 265.342 square miles. That works out to roughly 164 people per square mile. Rank 383 by population within its EPA zone puts Prince George County at the 63rd percentile among zone peers. Geologically, Prince George County is grouped into EPA Region 3 alongside 244 other counties that share its rock and soil setting.

What this actually means for a house in Prince George County

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Prince George County's Zone 3 prediction is the low end of the scale. Even at Zone 3, Prince George County homes are not guaranteed a low reading — zone is a county-wide average, and EPA recommends testing every home regardless of zone.

Testing and mitigation in Prince George County

Nothing about Prince George 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

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

Prince George 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.