Cherokee County, NC radon potential

Cherokee County is mapped as Zone 1 - Highest Potential by EPA — meaning the county-wide average indoor level is predicted above 4 pCi/L. Rank it against the rest of the country and Cherokee County lands in the 85th percentile for radon potential.

Cherokee County by the numbers

Cherokee County, North Carolina is home to about 30,373 people across 455.54 square miles. Averaged across its land area, Cherokee County runs about 67 people per square mile. Within its own EPA zone, Cherokee County is bigger by population than 56% of the counties that share it. Cherokee County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

Where the national indoor average runs about 1.3 pCi/L, Cherokee County's Zone 1 rating puts its predicted county average above EPA's 4 pCi/L action level itself. EPA's guidance doesn't change because of a Zone 1 label: test the house. What changes is the reason to not put it off in Cherokee County specifically.

Next steps for a home in Cherokee County

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find North Carolina's state radon program

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

Where Cherokee County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Cherokee County's numbers. Whatever zone Cherokee County carries, the zone explainer covers what it does and doesn't tell you about any one house.