Cleveland County, NC radon potential

Cleveland 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. That puts Cleveland County in the 60th percentile nationally for radon potential — higher than 60% of the counties EPA has rated.

How Cleveland County compares

Cleveland County, North Carolina is home to about 102,194 people across 464.264 square miles. Averaged across its land area, Cleveland County runs about 220 people per square mile. Within its own EPA zone, Cleveland County is bigger by population than 81% of the counties that share it. Geologically, Cleveland County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.

What this actually means for a house in Cleveland County

EPA's Zone 2 rating for Cleveland County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. Nothing about a Zone 2 label lowers the case for testing in Cleveland County — EPA recommends it in every zone, moderate included.

Next steps for a home in Cleveland 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 Cleveland County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Cleveland 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 Cleveland County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Cleveland County's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.