Is Socorro County, NM a radon risk area?

Socorro 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. Rank it against the rest of the country and Socorro County lands in the 44th percentile for radon potential.

How Socorro County compares

About 15,967 people live in Socorro County, New Mexico, spread over 6,646.387 square miles. Population density there runs about 2 people per square mile. Rank 695 by population within its EPA zone puts Socorro County at the 33rd percentile among zone peers. Socorro County falls in EPA Radon Region 6, one of 503 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Neither at the 4 pCi/L action level nor down at the roughly 1.3 pCi/L national indoor norm, Socorro County's Zone 2 prediction lands in the gap between the two. A county-wide moderate average, like Socorro County's, can still hide a specific house well above or below it — testing is what actually answers the question.

Testing and mitigation in Socorro County

Nothing about Socorro 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 Mexico's state radon program

Socorro County's test kit answers today; a Airthings radon monitor keeps answering for Socorro County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. Use code RADONZONE-10OFF at checkout for 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. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.