Is Lawrence County, PA a radon risk area?

EPA's own radon map rates Lawrence County zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. Nationally that's the 59th percentile for radon potential — Lawrence County outranks 59% of every county EPA has rated.

How Lawrence County compares

About 84,233 people live in Lawrence County, Pennsylvania, spread over 357.393 square miles. That works out to roughly 236 people per square mile. Rank 227 by population within its EPA zone puts Lawrence County at the 78th percentile among zone peers. Lawrence County falls in EPA Radon Region 3, one of 245 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

EPA's Zone 2 rating for Lawrence County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. Nothing about a Zone 2 label lowers the case for testing in Lawrence County — EPA recommends it in every zone, moderate included.

Next steps for a home in Lawrence County

Nothing about Lawrence 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 Pennsylvania's state radon program

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