Robeson County, NC radon potential

EPA places Robeson County in Zone 3 - Low Potential — a predicted county-wide average indoor radon level below 2 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally, Robeson County ranks higher in radon potential than 27% of rated counties (the 27th percentile).

Where Robeson County sits nationally

Robeson County, North Carolina is home to about 118,624 people across 947.302 square miles. Averaged across its land area, Robeson County runs about 125 people per square mile. Within its own EPA zone, Robeson County is bigger by population than 81% of the counties that share it. Robeson County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Robeson County's Zone 3 prediction is the low end of the scale. Low doesn't mean zero: EPA's own data shows homes in Zone 3 counties like Robeson County testing above the action level often enough that skipping a test isn't the safe assumption.

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

Where Robeson 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 Robeson County carries, the zone explainer covers what it does and doesn't tell you about any one house.