Is Crawford County, KS a radon risk area?

EPA places Crawford 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. Crawford County sits at the 53rd percentile nationally for radon potential — above 53 of every 100 rated counties.

Crawford County by the numbers

About 38,904 people live in Crawford County, Kansas, spread over 589.771 square miles. That works out to roughly 66 people per square mile. Rank 405 by population within its EPA zone puts Crawford County at the 61st percentile among zone peers. EPA's geology-based Region 7 groups Crawford County with 411 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

EPA's Zone 2 rating for Crawford County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. Crawford County's Zone 2 rating sits in the middle nationally; EPA's guidance is unchanged by that — test every home regardless of its zone.

Testing and mitigation in Crawford County

Nothing about Crawford 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 Kansas's state radon program

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

Crawford County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.