Macon County, NC radon potential

EPA places Macon County in Zone 2 - Moderate Potential — a predicted county-wide average indoor radon level between 2 and 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Rank it against the rest of the country and Macon County lands in the 53rd percentile for radon potential.

Macon County by the numbers

Macon County, North Carolina is home to about 38,717 people across 515.529 square miles. That works out to roughly 75 people per square mile. Within its own EPA zone, Macon County is bigger by population than 61% of the counties that share it. Macon County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Call it a middle case: above the 1.3 pCi/L most US homes average, below the 4 pCi/L line EPA uses to recommend mitigation — that's Macon County's Zone 2 prediction. Middle-of-the-pack doesn't mean risk-free for any one Macon County address — a moderate county average still leaves individual homes to test either side of it.

If Macon County tests above the action level

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

Where Macon County's figures come from

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