Banks County, GA: EPA's radon zone, explained

Banks 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. Nationally, Banks County ranks higher in radon potential than 46% of rated counties (the 46th percentile).

Banks County by the numbers

Banks County, Georgia is home to about 20,318 people across 232.657 square miles. That works out to roughly 87 people per square mile. By population, Banks County is the 621st largest of every county sharing its EPA zone — the 40th percentile by population within that zone. EPA's geology-based Region 4 groups Banks County with 735 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Banks County

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 Banks County's Zone 2 prediction. Middle-of-the-pack doesn't mean risk-free for any one Banks County address — a moderate county average still leaves individual homes to test either side of it.

If Banks County tests above the action level

For a Banks 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 Georgia's state radon program

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

Where Banks 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. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.