Is Clinton County, NY a radon risk area?

EPA places Clinton 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. Rank it against the rest of the country and Clinton County lands in the 58th percentile for radon potential.

How Clinton County compares

About 77,871 people live in Clinton County, New York, spread over 1,037.751 square miles. Population density there runs about 75 people per square mile. Rank 245 by population within its EPA zone puts Clinton County at the 76th percentile among zone peers. Clinton County falls in EPA Radon Region 2, one of 83 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

Call it a middle case: above the 1.3 pCi/L most US homes average, below the 4 pCi/L line EPA uses to recommend mitigation — that's Clinton County's Zone 2 prediction. Clinton County's Zone 2 rating sits in the middle nationally; EPA's guidance is unchanged by that — test every home regardless of its zone.

If Clinton County tests above the action level

Nothing about Clinton 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 York's state radon program

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

The methodology guide shows exactly which EPA and Census sources feed Clinton County's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.