Is Camden County, NJ a radon risk area?

EPA places Camden County in Zone 2 - Moderate Potential — a predicted county-wide average indoor radon level between 2 and 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. That puts Camden County in the 64th percentile nationally for radon potential — higher than 64% of the counties EPA has rated.

How Camden County compares

About 533,988 people live in Camden County, New Jersey, spread over 221.365 square miles. Population density there runs about 2,412 people per square mile. Rank 47 by population within its EPA zone puts Camden County at the 96th percentile among zone peers. Geologically, Camden County is grouped into EPA Region 2 alongside 82 other counties that share its rock and soil setting.

What this actually means for a house in Camden County

EPA's Zone 2 rating for Camden 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 Camden County's, can still hide a specific house well above or below it — testing is what actually answers the question.

Testing and mitigation in Camden County

Nothing about Camden 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 New Jersey's state radon program

Camden County's test kit answers today; a Airthings radon monitor keeps answering for Camden 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.