Wise County, VA: EPA's radon zone, explained

Wise County is mapped as Zone 2 - Moderate Potential by EPA — meaning the county-wide average indoor level is predicted between 2 and 4 pCi/L. Wise County sits at the 52nd percentile nationally for radon potential — above 52 of every 100 rated counties.

Where Wise County sits nationally

Wise County, Virginia is home to about 34,973 people across 403.443 square miles. Averaged across its land area, Wise County runs about 87 people per square mile. By population, Wise County is the 440th largest of every county sharing its EPA zone — the 57th percentile by population within that zone. Geologically, Wise County is grouped into EPA Region 3 alongside 244 other counties that share its rock and soil setting.

Why the zone isn't the answer by itself

EPA's Zone 2 rating for Wise County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. A county-wide moderate average, like Wise County's, can still hide a specific house well above or below it — testing is what actually answers the question.

Testing and mitigation in Wise County

For a Wise County homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Virginia's state radon program

For Wise County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Wise County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

Where Wise County's figures come from

Wise County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.