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

Morton 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. Morton County sits at the 34th percentile nationally for radon potential — above 34 of every 100 rated counties.

Morton County by the numbers

Morton County, Kansas is home to about 2,485 people across 729.731 square miles. Averaged across its land area, Morton County runs about 3 people per square mile. By population, Morton County is the 994th largest of every county sharing its EPA zone — the 4th percentile by population within that zone. Morton 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

EPA's Zone 2 rating for Morton County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. A county-wide moderate average, like Morton County's, can still hide a specific house well above or below it — testing is what actually answers the question.

Next steps for a home in Morton County

For a Morton 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 Morton County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Morton 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 Morton County's figures come from

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. Whatever zone Morton County carries, the zone explainer covers what it does and doesn't tell you about any one house.