What EPA's radon map says about Cameron County

EPA's own radon map rates Cameron County zone 1 - highest potential, predicting a county-wide average indoor level above 4 pCi/L. Nationally, Cameron County ranks higher in radon potential than 70% of rated counties (the 70th percentile).

How Cameron County compares

About 4,348 people live in Cameron County, Pennsylvania, spread over 396.234 square miles. Population density there runs about 11 people per square mile. Among counties sharing Cameron County's EPA zone, it outranks 12% of them by population. Cameron County falls in EPA Radon Region 3, one of 245 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

Cameron 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. That doesn't mean every Cameron 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 Cameron County tests above the action level

Mitigation cost doesn't depend on Cameron County's zone — it depends on the house's foundation. A typical system runs $800–$2,500 (about $1,200 typical), and testing first is what tells you whether that's needed at all.

Find Pennsylvania's state radon program

Cameron County's test kit answers today; a Airthings radon monitor keeps answering for Cameron County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

More on how this number was built

Cameron 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.