Is Morris County, KS a radon risk area?

Morris 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, Morris County ranks higher in radon potential than 36% of rated counties (the 36th percentile).

How Morris County compares

About 5,279 people live in Morris County, Kansas, spread over 695.343 square miles. Averaged across its land area, Morris County runs about 8 people per square mile. Rank 937 by population within its EPA zone puts Morris County at the 9th percentile among zone peers. Morris County falls in EPA Radon Region 7, one of 412 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

Morris County's predicted average falls between EPA's 4 pCi/L action level and the national indoor average of about 1.3 pCi/L (outdoor air runs roughly 0.4 pCi/L). Morris 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 Morris County

Nothing about Morris 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

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

The methodology guide shows exactly which EPA and Census sources feed Morris County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.