Cowley County, KS: EPA's radon zone, explained

Cowley 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. Nationally, Cowley County ranks higher in radon potential than 52% of rated counties (the 52nd percentile).

Cowley County by the numbers

Cowley County, Kansas is home to about 34,186 people across 1,125.738 square miles. Population density there runs about 30 people per square mile. By population, Cowley County is the 449th largest of every county sharing its EPA zone — the 57th percentile by population within that zone. EPA's geology-based Region 7 groups Cowley County with 411 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Cowley County

Cowley 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. Cowley County's Zone 2 rating sits in the middle nationally; EPA's guidance is unchanged by that — test every home regardless of its zone.

Next steps for a home in Cowley County

For a Cowley County homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Kansas's state radon program

For Cowley County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Cowley County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

Where Cowley County's figures come from

Cowley 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.