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

EPA places McIntosh 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, McIntosh County ranks higher in radon potential than 8% of rated counties (the 8th percentile).

How McIntosh County compares

McIntosh County, Georgia is home to about 11,800 people across 431.347 square miles. Population density there runs about 27 people per square mile. By population, McIntosh County is the 775th largest of every county sharing its EPA zone — the 25th percentile by population within that zone. EPA's geology-based Region 4 groups McIntosh County with 735 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

McIntosh County's Zone 3 prediction undercuts the roughly 1.3 pCi/L most US homes average, nowhere near EPA's 4 pCi/L threshold for recommending mitigation. Don't read Zone 3 as a pass for McIntosh County — EPA's guidance to test every home makes no exception for counties predicted low.

Next steps for a home in McIntosh County

For a McIntosh 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 McIntosh County, an ongoing number beats a one-time test - a Airthings radon monitor tracks McIntosh 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 McIntosh County's figures come from

The methodology guide shows exactly which EPA and Census sources feed McIntosh County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.