Is Lincoln County, NC a radon risk area?

EPA's own radon map rates Lincoln 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 — Lincoln County outranks 59% of every county EPA has rated.

Where Lincoln County sits nationally

About 97,611 people live in Lincoln County, North Carolina, spread over 295.851 square miles. Population density there runs about 330 people per square mile. Rank 204 by population within its EPA zone puts Lincoln County at the 80th percentile among zone peers. Geologically, Lincoln County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.

Zone vs. an actual test

Lincoln County's Zone 2 prediction clears the 1.3 pCi/L national indoor average without reaching EPA's own 4 pCi/L point for recommending a fix. Nothing about a Zone 2 label lowers the case for testing in Lincoln County — EPA recommends it in every zone, moderate included.

Next steps for a home in Lincoln County

Nothing about Lincoln 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 North Carolina's state radon program

Lincoln County's test kit answers today; a Airthings radon monitor keeps answering for Lincoln 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 Lincoln County's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.