Huntingdon County, PA radon potential

EPA's own radon map rates Huntingdon County zone 1 - highest potential, predicting a county-wide average indoor level above 4 pCi/L. That puts Huntingdon County in the 89th percentile nationally for radon potential — higher than 89% of the counties EPA has rated.

How Huntingdon County compares

Huntingdon County, Pennsylvania is home to about 43,359 people across 874.592 square miles. Population density there runs about 50 people per square mile. Within its own EPA zone, Huntingdon County is bigger by population than 67% of the counties that share it. Geologically, Huntingdon 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 Huntingdon County

Fixing a home becomes an EPA recommendation past 4 pCi/L, and that is precisely the side of the line Huntingdon County's Zone 1 prediction lands on, well above the roughly 1.3 pCi/L most US homes average. That doesn't mean every Huntingdon 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.

If Huntingdon County tests above the action level

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Pennsylvania's state radon program

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

Where Huntingdon County's figures come from

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.